/* =============================================================
   UAFCalc.site — Main Stylesheet
   Modern light theme, responsive, AdSense-ready
   ============================================================= */

:root {
    --green-900: #063a20;
    --green-800: #0a5c36;
    --green-700: #0d7342;
    --green-600: #118a4e;
    --green-100: #e8f5ee;
    --green-50:  #f3fbf6;
    --gold:      #c19a53;
    --gold-light:#f0e0b0;
    --text-900:  #111827;
    --text-700:  #374151;
    --text-500:  #6B7280;
    --text-400:  #9CA3AF;
    --border:    #E5E7EB;
    --bg-page:   #F9FAFB;
    --bg-white:  #FFFFFF;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,.12);
    --radius-sm: 6px;
    --radius:    12px;
    --radius-lg: 20px;
    --transition: .2s ease;
    --success:   #16a34a;
    --danger:    #dc2626;
    --warning:   #d97706;
    --info:      #0891b2;
}

/* ── Reset ── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-page);
    color: var(--text-700);
    line-height: 1.7;
    font-size: 16px;
}
img { max-width:100%; height:auto; display:block; }
a { color: var(--green-700); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--green-800); }
ul { list-style: none; }

/* ── Container ── */
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ── Typography ── */
h1,h2,h3,h4,h5,h6 { color: var(--text-900); line-height: 1.3; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); }
p  { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* ── Cookie Notice ── */
.cookie-notice {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 9999;
    background: var(--text-900); color: #fff;
    padding: 14px 20px;
    box-shadow: 0 -4px 20px rgba(0,0,0,.2);
}
.cookie-content {
    display: flex; align-items: center; gap: 14px;
    max-width: 1180px; margin: 0 auto; flex-wrap: wrap;
}
.cookie-content i { font-size: 24px; color: var(--gold); flex-shrink: 0; }
.cookie-content p { margin: 0; font-size: 14px; flex: 1; min-width: 200px; }
.cookie-content a { color: var(--gold-light); text-decoration: underline; }
.cookie-btn {
    background: var(--green-700); color: #fff;
    border: none; padding: 8px 20px; border-radius: var(--radius-sm);
    cursor: pointer; font-weight: 600; font-size: 14px;
    transition: background var(--transition);
}
.cookie-btn:hover { background: var(--green-600); }

/* ── Navbar ── */
.navbar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 1000;
    box-shadow: var(--shadow-sm);
}
.nav-container {
    display: flex; align-items: center; justify-content: space-between;
    height: 68px; max-width: 1180px; margin: 0 auto; padding: 0 20px;
}
.nav-brand {
    display: flex; align-items: center; gap: 10px; text-decoration: none;
}
.brand-icon { font-size: 28px; }
.brand-name { font-size: 20px; font-weight: 800; color: var(--green-800); }
.brand-sub  { color: var(--gold); }
.nav-menu {
    display: flex; align-items: center; gap: 4px;
}
.nav-link {
    display: block; padding: 8px 14px; border-radius: var(--radius-sm);
    color: var(--text-700); font-weight: 500; font-size: 15px;
    transition: background var(--transition), color var(--transition);
    white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
    background: var(--green-100); color: var(--green-800);
}
.nav-link i { font-size: 11px; margin-left: 3px; }
.nav-cta {
    display: flex; align-items: center; gap: 6px;
    background: var(--green-800); color: #fff !important;
    padding: 9px 18px; border-radius: var(--radius-sm);
    font-weight: 600; font-size: 14px; margin-left: 8px;
    transition: background var(--transition), transform var(--transition);
}
.nav-cta:hover { background: var(--green-700); transform: translateY(-1px); color:#fff; }

/* Dropdown */
.nav-dropdown { position: relative; }
.dropdown-menu {
    display: none; position: absolute; top: calc(100% + 8px); left: 0;
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: var(--radius); min-width: 220px;
    box-shadow: var(--shadow-md); z-index: 200; padding: 8px;
}
.dropdown-menu li a {
    display: block; padding: 9px 14px; border-radius: var(--radius-sm);
    font-size: 14px; color: var(--text-700);
    transition: background var(--transition);
}
.dropdown-menu li a:hover { background: var(--green-50); color: var(--green-800); }
.nav-dropdown:hover .dropdown-menu { display: block; }

/* Hamburger */
.nav-toggle {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 6px;
}
.nav-toggle span {
    width: 24px; height: 2px; background: var(--text-900);
    display: block; border-radius: 2px; transition: all .3s;
}

/* ── Hero Section ── */
.hero {
    background: linear-gradient(135deg, var(--green-900) 0%, var(--green-800) 60%, var(--green-700) 100%);
    color: #fff; padding: 90px 0 80px; text-align: center;
    position: relative; overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25);
    color: #fff; padding: 6px 16px; border-radius: 50px;
    font-size: 13px; font-weight: 500; margin-bottom: 24px;
    backdrop-filter: blur(4px);
}
.hero h1 { color: #fff; margin-bottom: 20px; }
.hero h1 span { color: var(--gold-light); }
.hero p  { color: rgba(255,255,255,.85); font-size: 1.1rem; max-width: 580px; margin: 0 auto 36px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 13px 28px; border-radius: var(--radius-sm);
    font-weight: 600; font-size: 15px; cursor: pointer;
    border: none; transition: all var(--transition);
}
.btn-primary { background: var(--gold); color: var(--text-900); }
.btn-primary:hover { background: #d4aa6a; transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--text-900); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.5); }
.btn-outline:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; }
.btn-green { background: var(--green-800); color: #fff; }
.btn-green:hover { background: var(--green-700); transform: translateY(-2px); box-shadow: var(--shadow-md); color:#fff; }

/* ── Stats Bar ── */
.stats-bar { background: var(--bg-white); border-bottom: 1px solid var(--border); padding: 24px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; }
.stat-item { text-align: center; padding: 12px 20px; border-right: 1px solid var(--border); }
.stat-item:last-child { border-right: none; }
.stat-number { font-size: 2rem; font-weight: 800; color: var(--green-800); line-height: 1; }
.stat-label  { font-size: 13px; color: var(--text-500); margin-top: 4px; }

/* ── Section Layout ── */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-white); }
.section-header { text-align: center; margin-bottom: 52px; }
.section-header p { color: var(--text-500); font-size: 1.05rem; max-width: 560px; margin: 12px auto 0; }
.section-tag {
    display: inline-block; background: var(--green-100); color: var(--green-800);
    padding: 4px 14px; border-radius: 50px; font-size: 12px; font-weight: 600;
    text-transform: uppercase; letter-spacing: .5px; margin-bottom: 12px;
}

/* ── Feature Cards ── */
.features-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.feature-card {
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 32px 28px;
    transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-icon {
    width: 52px; height: 52px; border-radius: var(--radius-sm);
    background: var(--green-100); display: flex; align-items: center; justify-content: center;
    font-size: 22px; margin-bottom: 18px; color: var(--green-800);
}
.feature-card h3 { margin-bottom: 8px; font-size: 1.05rem; }
.feature-card p  { font-size: 14px; color: var(--text-500); margin: 0; }

/* ── How It Works ── */
.steps-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; }
.step { text-align: center; }
.step-number {
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--green-800); color: #fff;
    font-size: 22px; font-weight: 800;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 18px;
}
.step h3 { margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--text-500); }

/* ── CTA Banner ── */
.cta-banner {
    background: linear-gradient(135deg, var(--green-800), var(--green-700));
    color: #fff; padding: 72px 0; text-align: center;
}
.cta-banner h2 { color: #fff; margin-bottom: 14px; }
.cta-banner p  { color: rgba(255,255,255,.85); margin-bottom: 32px; font-size: 1.05rem; }

/* ── Blog Cards ── */
.blog-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
.blog-card {
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
    display: flex; flex-direction: column;
}
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.blog-card-img {
    height: 180px; background: linear-gradient(135deg, var(--green-100), var(--green-50));
    display: flex; align-items: center; justify-content: center;
    font-size: 52px;
}
.blog-card-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.blog-tag {
    display: inline-block; background: var(--green-100); color: var(--green-800);
    padding: 3px 10px; border-radius: 50px; font-size: 11px; font-weight: 600;
    margin-bottom: 10px; text-transform: uppercase; letter-spacing: .4px;
}
.blog-card h3 { font-size: 1rem; margin-bottom: 8px; line-height: 1.4; }
.blog-card h3 a { color: var(--text-900); }
.blog-card h3 a:hover { color: var(--green-800); }
.blog-card p  { font-size: 13px; color: var(--text-500); flex: 1; margin-bottom: 14px; }
.blog-meta { font-size: 12px; color: var(--text-400); display: flex; gap: 12px; }
.read-more {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 13px; font-weight: 600; color: var(--green-700);
    margin-top: 12px;
}
.read-more:hover { gap: 8px; }

/* ── Calculator Page ── */
.calc-header {
    background: linear-gradient(135deg, var(--green-900), var(--green-800));
    color: #fff; padding: 56px 0 52px; text-align: center;
}
.calc-header h1 { color: #fff; margin-bottom: 10px; }
.calc-header p  { color: rgba(255,255,255,.85); font-size: 1rem; }

.calc-wrapper {
    background: var(--bg-white); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg); padding: 40px;
    margin: -32px auto 48px; max-width: 900px; position: relative; z-index: 2;
}

.input-group { margin-bottom: 24px; }
.input-label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 14px; color: var(--text-700); }
.ag-textarea {
    width: 100%; padding: 16px; border: 2px solid var(--border); border-radius: var(--radius-sm);
    font-family: 'Inter', monospace; font-size: 14px; line-height: 1.6;
    resize: vertical; transition: border-color var(--transition); min-height: 140px;
    color: var(--text-900); background: var(--bg-page);
}
.ag-textarea:focus { outline: none; border-color: var(--green-700); background: #fff; }
.ag-textarea::placeholder { color: var(--text-400); }

.fetch-btn {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    width: 100%; padding: 16px; background: var(--green-800); color: #fff;
    border: none; border-radius: var(--radius-sm); font-size: 16px; font-weight: 700;
    cursor: pointer; transition: background var(--transition), transform var(--transition);
}
.fetch-btn:hover:not(:disabled) { background: var(--green-700); transform: translateY(-1px); }
.fetch-btn:disabled { opacity: .6; cursor: not-allowed; }

.performance-info {
    background: var(--green-50); border: 1px solid var(--green-100);
    border-radius: var(--radius-sm); padding: 12px 16px; margin-top: 16px;
    font-size: 13px; color: var(--green-800); display: flex; gap: 12px; flex-wrap: wrap;
}
.performance-info i { color: var(--green-700); }

/* Loading */
.loading {
    display: none; text-align: center; padding: 48px 24px;
}
.spinner {
    width: 48px; height: 48px; border: 4px solid var(--border);
    border-top-color: var(--green-800); border-radius: 50%;
    animation: spin 0.9s linear infinite; margin: 0 auto 20px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.progress { background: var(--border); border-radius: 50px; height: 6px; margin: 16px 0 8px; overflow: hidden; }
.progress-bar { height: 100%; background: var(--green-700); border-radius: 50px; transition: width .4s ease; width: 0; }

/* Results */
.results-section { display: none; }
.results-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.stats { display: flex; gap: 12px; flex-wrap: wrap; }
.stat-box {
    background: var(--bg-page); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 12px 20px; text-align: center; min-width: 90px;
}
.stat-value { font-size: 1.5rem; font-weight: 800; color: var(--text-900); }
.stat-label { font-size: 11px; color: var(--text-500); text-transform: uppercase; letter-spacing: .5px; margin-top: 2px; }
.action-buttons { display: flex; gap: 8px; flex-wrap: wrap; }
.action-btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 14px; border-radius: var(--radius-sm); border: none;
    color: #fff; font-size: 13px; font-weight: 600; cursor: pointer;
    background: var(--green-800); transition: opacity var(--transition);
}
.action-btn:hover { opacity: .88; }

/* Student cards */
.students-grid { display: flex; flex-direction: column; gap: 12px; }
.student-card {
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
    transition: box-shadow var(--transition);
}
.student-card:hover { box-shadow: var(--shadow-md); }
.student-header {
    display: flex; align-items: center; gap: 16px; padding: 18px 20px;
    cursor: pointer; user-select: none; transition: background var(--transition);
}
.student-header:hover { background: var(--bg-page); }
.student-header.expanded { background: var(--green-50); border-bottom: 1px solid var(--border); }
.student-info { flex: 1; }
.student-name { font-weight: 700; color: var(--text-900); font-size: 15px; }
.student-ag   { font-size: 12px; color: var(--text-500); margin-top: 2px; font-family: monospace; }
.student-cgpa {
    font-size: 1.4rem; font-weight: 800; min-width: 72px; text-align: right;
    font-variant-numeric: tabular-nums;
}
.student-cgpa.high   { color: var(--success); }
.student-cgpa.medium { color: var(--warning); }
.student-cgpa.low    { color: var(--danger); }
.expand-btn {
    width: 32px; height: 32px; border: 1px solid var(--border);
    border-radius: 50%; background: var(--bg-white);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all var(--transition); color: var(--text-500);
}
.student-header.expanded .expand-btn { transform: rotate(180deg); background: var(--green-100); color: var(--green-800); }
.cache-badge {
    background: var(--gold-light); color: #7a5a00; font-size: 11px;
    padding: 3px 8px; border-radius: 50px; font-weight: 600;
}

/* Student details */
.student-details { display: none; padding: 24px; background: var(--bg-page); }
.student-details.expanded { display: block; }
.student-stats { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.student-stat {
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 12px 18px; text-align: center; min-width: 80px;
}
.stat-number { font-size: 1.3rem; font-weight: 800; color: var(--green-800); }
.stat-text   { font-size: 11px; color: var(--text-500); margin-top: 2px; }

/* Semester/course tables */
.semester { margin-bottom: 20px; background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.semester-header { background: var(--green-800); color: #fff; padding: 10px 16px; font-weight: 700; font-size: 14px; display: flex; justify-content: space-between; align-items: center; }
.course-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.course-table th { background: var(--green-50); color: var(--green-800); padding: 10px 14px; text-align: left; font-weight: 600; border-bottom: 1px solid var(--border); font-size: 12px; text-transform: uppercase; letter-spacing: .3px; }
.course-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); color: var(--text-700); }
.course-table tr:last-child td { border-bottom: none; }
.course-table tr:hover td { background: var(--green-50); }
.grade-A { color: var(--success); font-weight: 700; }
.grade-B { color: #0891b2; font-weight: 700; }
.grade-C { color: var(--warning); font-weight: 700; }
.grade-D { color: #ea580c; font-weight: 700; }
.grade-F { color: var(--danger); font-weight: 700; }
.grade-P { color: var(--text-500); font-weight: 600; }

/* Speed badge */
.speed-badge {
    display: none; position: fixed; top: 80px; right: 20px;
    background: var(--green-800); color: #fff;
    padding: 8px 14px; border-radius: 50px; font-size: 13px; font-weight: 600;
    z-index: 500; box-shadow: var(--shadow-md);
    animation: pulse 1s ease infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.7} }

/* Errors */
.errors-section { background: #fff5f5; border: 1px solid #fecaca; border-radius: var(--radius-sm); padding: 20px; margin-top: 16px; }
.errors-section h4 { color: var(--danger); margin-bottom: 12px; }
.error-item { display: flex; gap: 16px; padding: 8px 0; border-bottom: 1px solid #fecaca; font-size: 13px; }
.error-item:last-child { border-bottom: none; }

/* Modal */
.modal-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,.5); z-index: 2000;
    align-items: center; justify-content: center; padding: 20px;
    backdrop-filter: blur(2px);
}
.modal-overlay.active { display: flex; }
.modal-content {
    background: var(--bg-white); border-radius: var(--radius-lg);
    width: 100%; max-width: 780px; max-height: 90vh; overflow-y: auto;
    box-shadow: var(--shadow-lg);
}
.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 20px 24px; border-bottom: 1px solid var(--border);
    position: sticky; top: 0; background: var(--bg-white); z-index: 1;
}
.modal-title { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 700; color: var(--text-900); }
.modal-title i { color: var(--green-700); }
.modal-close { background: none; border: none; cursor: pointer; font-size: 18px; color: var(--text-500); padding: 4px; }
.modal-close:hover { color: var(--danger); }
.modal-body { padding: 24px; }

/* ── Blog Single ── */
.blog-hero { background: var(--green-900); color: #fff; padding: 60px 0 52px; }
.blog-hero .breadcrumb { font-size: 13px; color: rgba(255,255,255,.6); margin-bottom: 14px; }
.blog-hero .breadcrumb a { color: rgba(255,255,255,.8); }
.blog-hero h1 { color: #fff; font-size: clamp(1.5rem, 4vw, 2.5rem); max-width: 780px; }
.blog-hero .meta { display: flex; gap: 20px; margin-top: 16px; font-size: 14px; color: rgba(255,255,255,.7); flex-wrap: wrap; }
.blog-hero .meta i { margin-right: 5px; color: var(--gold); }

.blog-layout { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; padding: 52px 0; }
.blog-content { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius); padding: 40px; }
.blog-content h2 { margin: 32px 0 14px; padding-top: 8px; }
.blog-content h3 { margin: 24px 0 10px; }
.blog-content p  { color: var(--text-700); margin-bottom: 16px; }
.blog-content ul,
.blog-content ol { padding-left: 24px; margin-bottom: 16px; }
.blog-content li { margin-bottom: 6px; color: var(--text-700); }
.blog-content blockquote { border-left: 4px solid var(--green-700); margin: 24px 0; padding: 14px 20px; background: var(--green-50); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--green-800); font-style: italic; }
.blog-content table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.blog-content th { background: var(--green-800); color: #fff; padding: 10px 14px; text-align: left; }
.blog-content td { padding: 10px 14px; border-bottom: 1px solid var(--border); }
.blog-content tr:nth-child(even) td { background: var(--bg-page); }
.blog-cta-box { background: linear-gradient(135deg, var(--green-50), var(--green-100)); border: 1px solid var(--green-700); border-radius: var(--radius); padding: 24px; margin: 32px 0; text-align: center; }
.blog-cta-box h3 { color: var(--green-800); margin-bottom: 10px; }
.blog-cta-box p  { color: var(--green-700); font-size: 14px; margin-bottom: 16px; }

/* Sidebar */
.sidebar { position: sticky; top: 88px; display: flex; flex-direction: column; gap: 24px; }
.sidebar-card { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.sidebar-card h3 { font-size: 15px; margin-bottom: 14px; border-bottom: 2px solid var(--green-700); padding-bottom: 8px; }
.sidebar-card ul li { padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.sidebar-card ul li:last-child { border-bottom: none; }
.sidebar-card ul li a { color: var(--text-700); display: flex; gap: 6px; align-items: flex-start; }
.sidebar-card ul li a::before { content: '›'; color: var(--green-700); font-weight: 700; flex-shrink: 0; }
.sidebar-card ul li a:hover { color: var(--green-800); }

/* ── Forms ── */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 14px; }
.form-control {
    width: 100%; padding: 12px 16px; border: 2px solid var(--border);
    border-radius: var(--radius-sm); font-size: 15px; font-family: inherit;
    background: var(--bg-page); color: var(--text-900);
    transition: border-color var(--transition), background var(--transition);
}
.form-control:focus { outline: none; border-color: var(--green-700); background: #fff; }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-success { background: #dcfce7; border: 1px solid #86efac; border-radius: var(--radius-sm); padding: 16px; color: #166534; font-weight: 600; display: none; }

/* Page hero (inner pages) */
.page-hero { background: linear-gradient(135deg, var(--green-900), var(--green-800)); color: #fff; padding: 60px 0; text-align: center; }
.page-hero h1 { color: #fff; margin-bottom: 12px; }
.page-hero p  { color: rgba(255,255,255,.8); max-width: 560px; margin: 0 auto; }

/* Prose page (about, privacy, etc.) */
.prose-content { max-width: 780px; margin: 60px auto; background: var(--bg-white); border-radius: var(--radius); padding: 48px; box-shadow: var(--shadow-sm); border: 1px solid var(--border); }
.prose-content h2 { margin: 36px 0 14px; color: var(--green-800); }
.prose-content h3 { margin: 24px 0 10px; }
.prose-content p,
.prose-content li { color: var(--text-700); }
.prose-content ul,
.prose-content ol { padding-left: 22px; margin-bottom: 16px; }
.prose-content li { margin-bottom: 6px; }

/* Contact grid */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; padding: 60px 0; }
.contact-info h3 { margin-bottom: 16px; }
.contact-info p   { color: var(--text-500); }
.contact-detail { display: flex; gap: 14px; margin-top: 24px; align-items: flex-start; }
.contact-detail .icon { width: 44px; height: 44px; background: var(--green-100); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: var(--green-800); font-size: 18px; flex-shrink: 0; }
.contact-detail h4 { font-size: 14px; margin-bottom: 4px; }
.contact-detail p  { font-size: 13px; color: var(--text-500); margin: 0; }

/* ── Footer ── */
.site-footer { background: var(--text-900); color: rgba(255,255,255,.75); }
.footer-top { padding: 60px 0 48px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-brand .brand-name { font-size: 20px; font-weight: 800; color: #fff; }
.footer-brand .brand-icon { font-size: 24px; }
.footer-about p { font-size: 14px; line-height: 1.7; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
    width: 36px; height: 36px; background: rgba(255,255,255,.08); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,.7); font-size: 15px; transition: all var(--transition);
}
.footer-social a:hover { background: var(--green-700); color: #fff; }
.footer-col h3 { color: #fff; font-size: 14px; margin-bottom: 16px; text-transform: uppercase; letter-spacing: .5px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,.65); font-size: 14px; transition: color var(--transition); }
.footer-col ul li a:hover { color: #fff; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 20px 0; display: flex; justify-content: space-between;
    align-items: center; flex-wrap: wrap; gap: 10px;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.45); margin: 0; }
.footer-bottom a { color: rgba(255,255,255,.6); }
.footer-bottom a:hover { color: #fff; }

/* Blog index */
.blog-index-hero { background: var(--green-900); color: #fff; padding: 60px 0; text-align: center; }
.blog-index-hero h1 { color: #fff; margin-bottom: 10px; }
.blog-index-hero p  { color: rgba(255,255,255,.8); }
.blog-filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.filter-btn {
    padding: 7px 16px; border-radius: 50px; border: 1px solid var(--border);
    background: var(--bg-white); color: var(--text-700); font-size: 13px;
    cursor: pointer; transition: all var(--transition); font-weight: 500;
}
.filter-btn.active,
.filter-btn:hover { background: var(--green-800); color: #fff; border-color: var(--green-800); }

/* Related posts */
.related-posts { margin-top: 48px; padding-top: 32px; border-top: 2px solid var(--border); }
.related-posts h3 { margin-bottom: 20px; }
.related-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; }
.related-card { background: var(--bg-page); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px; transition: background var(--transition); }
.related-card:hover { background: var(--green-50); }
.related-card .blog-tag { margin-bottom: 6px; }
.related-card h4 { font-size: 13px; margin-bottom: 6px; }
.related-card h4 a { color: var(--text-900); }
.related-card h4 a:hover { color: var(--green-800); }
.related-card p { font-size: 12px; color: var(--text-500); margin: 0; }

/* Breadcrumb */
.breadcrumb-bar { background: var(--bg-white); border-bottom: 1px solid var(--border); padding: 10px 0; }
.breadcrumb { display: flex; gap: 6px; align-items: center; font-size: 13px; color: var(--text-500); }
.breadcrumb a { color: var(--text-500); }
.breadcrumb a:hover { color: var(--green-800); }
.breadcrumb .sep { color: var(--text-400); }

/* Page not found / utility */
.text-center { text-align: center; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }

/* ── Responsive ── */
@media (max-width: 1024px) {
    .features-grid,
    .steps-grid { grid-template-columns: repeat(2,1fr); }
    .stats-grid { grid-template-columns: repeat(2,1fr); }
    .stat-item:nth-child(2) { border-right: none; }
    .blog-grid { grid-template-columns: repeat(2,1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        display: none; position: fixed; inset: 68px 0 0 0;
        background: var(--bg-white); flex-direction: column;
        align-items: flex-start; padding: 20px; gap: 4px;
        border-top: 1px solid var(--border); overflow-y: auto; z-index: 999;
    }
    .nav-menu.open { display: flex; }
    .nav-link { width: 100%; }
    .nav-cta { width: 100%; justify-content: center; margin-left: 0; }
    .dropdown-menu { position: static; box-shadow: none; border: none; background: var(--green-50); margin-left: 12px; }
    .nav-dropdown:hover .dropdown-menu { display: none; }
    .nav-dropdown.open .dropdown-menu { display: block; }

    .hero { padding: 60px 0; }
    .hero-actions { flex-direction: column; align-items: center; }
    .features-grid,
    .steps-grid,
    .blog-grid { grid-template-columns: 1fr; }
    .blog-layout { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .stats-grid { grid-template-columns: repeat(2,1fr); }
    .prose-content { padding: 28px 20px; margin: 30px auto; }
    .calc-wrapper { padding: 24px 20px; }
    .blog-content { padding: 24px 20px; }
    .related-grid { grid-template-columns: 1fr; }
    .results-header { flex-direction: column; align-items: flex-start; }
    .student-stats { gap: 10px; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr 1fr; }
    h1 { font-size: 1.8rem; }
    .calc-wrapper { margin: -24px 12px 40px; }
}

/* ── Image & illustration helpers ── */
.img-hero{width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);display:block}
.img-rounded{border-radius:var(--radius);box-shadow:var(--shadow-md);display:block;width:100%}
.img-feature{border-radius:var(--radius-sm);width:100%;display:block}
.img-badge{width:64px;height:64px;border-radius:50%;object-fit:cover;border:3px solid var(--bg-white);box-shadow:var(--shadow-sm)}
.svg-icon{width:100%;max-width:480px;margin:0 auto;display:block}

/* ── Split layout ── */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split.reverse .split-img{order:-1}
.split-img{position:relative}
.split-img .badge-float{position:absolute;bottom:-18px;right:-18px;background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);padding:14px 18px;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;color:var(--green-800)}
.split-img .badge-float span{font-size:24px}
@media(max-width:768px){.split{grid-template-columns:1fr;gap:32px}.split.reverse .split-img{order:0}}

/* ── Icon boxes ── */
.icon-box{display:flex;gap:16px;margin-bottom:24px;align-items:flex-start}
.icon-box-icon{width:48px;height:48px;background:var(--green-100);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--green-800);flex-shrink:0}
.icon-box h4{margin-bottom:4px;font-size:15px}
.icon-box p{font-size:14px;color:var(--text-500);margin:0}

/* ── Testimonial cards ── */
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testimonial{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);padding:28px;position:relative}
.testimonial::before{content:'"';font-size:80px;color:var(--green-100);position:absolute;top:10px;left:20px;line-height:1;font-family:Georgia,serif}
.testimonial p{color:var(--text-700);font-style:italic;position:relative;z-index:1;margin-bottom:18px;font-size:15px;line-height:1.7}
.testimonial-author{display:flex;align-items:center;gap:12px}
.testimonial-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--green-700),var(--green-800));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:16px;flex-shrink:0}
.testimonial-name{font-weight:700;font-size:14px}
.testimonial-meta{font-size:12px;color:var(--text-500)}
@media(max-width:768px){.testimonial-grid{grid-template-columns:1fr}}

/* ── FAQ ── */
.faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:10px;overflow:hidden}
.faq-q{padding:18px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:15px;background:var(--bg-white);transition:background var(--transition);user-select:none}
.faq-q:hover{background:var(--green-50)}
.faq-q.open{background:var(--green-50);color:var(--green-800)}
.faq-q i{transition:transform .3s;color:var(--green-700);flex-shrink:0}
.faq-q.open i{transform:rotate(180deg)}
.faq-a{display:none;padding:0 20px 18px;font-size:14px;color:var(--text-700);line-height:1.8;border-top:1px solid var(--border)}
.faq-a.open{display:block}

/* ── Number highlight ── */
.big-number{font-size:3.5rem;font-weight:800;color:var(--green-800);line-height:1}
.big-number-label{font-size:14px;color:var(--text-500);margin-top:4px}

/* ── Timeline ── */
.timeline{position:relative;padding-left:28px}
.timeline::before{content:'';position:absolute;left:8px;top:0;bottom:0;width:2px;background:var(--border)}
.timeline-item{position:relative;margin-bottom:32px}
.timeline-item::before{content:'';position:absolute;left:-24px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--green-800);border:2px solid var(--bg-white);box-shadow:0 0 0 2px var(--green-800)}
.timeline-item h4{font-size:15px;margin-bottom:6px;color:var(--green-800)}
.timeline-item p{font-size:14px;color:var(--text-500);margin:0}

/* ── Alert/tip box ── */
.tip-box{border-radius:var(--radius);padding:20px 24px;margin:24px 0;display:flex;gap:14px;align-items:flex-start}
.tip-box.green{background:var(--green-50);border-left:4px solid var(--green-700)}
.tip-box.gold{background:#fffbeb;border-left:4px solid var(--gold)}
.tip-box.red{background:#fff5f5;border-left:4px solid var(--danger)}
.tip-box i{font-size:20px;flex-shrink:0;margin-top:2px}
.tip-box.green i{color:var(--green-700)}
.tip-box.gold i{color:var(--gold)}
.tip-box.red i{color:var(--danger)}
.tip-box p{margin:0;font-size:14px;line-height:1.7}

/* ── Team card ── */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.team-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;text-align:center}
.team-avatar{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,var(--green-800),var(--green-700));margin:0 auto 16px;display:flex;align-items:center;justify-content:center;font-size:32px;color:#fff;font-weight:800}
.team-card h3{font-size:16px;margin-bottom:4px}
.team-card .role{font-size:13px;color:var(--green-700);font-weight:600;margin-bottom:10px}
.team-card p{font-size:13px;color:var(--text-500);margin:0}
@media(max-width:768px){.team-grid{grid-template-columns:1fr 1fr}.testimonial-grid{grid-template-columns:1fr}}

/* ── Inline SVG illustrations ── */
.illus-wrap{background:var(--green-50);border-radius:var(--radius-lg);padding:32px;display:flex;align-items:center;justify-content:center;min-height:260px}

/* ── Comparison table ── */
.compare-table{width:100%;border-collapse:collapse;margin:24px 0}
.compare-table th{background:var(--green-800);color:#fff;padding:14px 16px;text-align:left;font-size:14px}
.compare-table th:first-child{border-radius:var(--radius-sm) 0 0 0}
.compare-table th:last-child{border-radius:0 var(--radius-sm) 0 0}
.compare-table td{padding:12px 16px;border-bottom:1px solid var(--border);font-size:14px;vertical-align:top}
.compare-table tr:nth-child(even) td{background:var(--bg-page)}
.compare-table .check{color:var(--success);font-weight:700}
.compare-table .cross{color:var(--danger)}

/* ── Value prop row ── */
.value-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;padding:40px 0}
.value-item .vi-icon{font-size:36px;margin-bottom:12px}
.value-item h4{font-size:15px;margin-bottom:6px}
.value-item p{font-size:13px;color:var(--text-500);margin:0}
@media(max-width:768px){.value-row{grid-template-columns:1fr 1fr}}

/* ── Real image blog cards ── */
.blog-card > a img { transition: transform .35s ease; }
.blog-card:hover > a img { transform: scale(1.05); }
.blog-card > a { display: block; overflow: hidden; height: 200px; }

/* ── Real image split sections ── */
.split-img img { width: 100%; height: 380px; object-fit: cover; border-radius: var(--radius-lg); display: block; box-shadow: var(--shadow-lg); }
@media(max-width:768px){ .split-img img { height: 240px; } }

/* ── Blog post hero banner images ── */
.blog-hero-img-wrap { margin-bottom: 32px; border-radius: var(--radius-lg); overflow: hidden; max-height: 420px; }
.blog-hero-img-wrap img { width: 100%; height: 420px; object-fit: cover; display: block; }
@media(max-width:768px){ .blog-hero-img-wrap img { height: 220px; } }

/* ── Inline blog images ── */
.blog-content .inline-img-wrap { margin: 28px 0; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }
.blog-content .inline-img-wrap img { width: 100%; display: block; }

/* ── Team card images ── */
.team-card img { width: 80px; height: 80px; border-radius: 50%; object-fit: cover; margin: 0 auto 16px; display: block; border: 3px solid var(--green-100); }

/* ── General img responsive helpers ── */
img { max-width: 100%; height: auto; }

/* ════════════════════════════════════════════
   GLOBAL RESPONSIVE IMAGE FIXES
   All images adapt perfectly on mobile & desktop
   ════════════════════════════════════════════ */

/* ── Base rule: every img is fluid ── */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ── Hero section images ── */
.hero-img-wrap {
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,.25);
}
.hero-img-wrap img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    display: block;
    border-radius: 16px;
}

/* ── About page campus hero image ── */
.about-hero-img {
    width: 100%;
    height: 360px;
    object-fit: cover;
    display: block;
    filter: brightness(.45);
}

/* ── About story section team image ── */
.story-img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    border-radius: 16px;
    display: block;
    box-shadow: 0 10px 40px rgba(0,0,0,.12);
}

/* ── Team member portraits ── */
.team-img {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    margin: 0 auto 16px;
    border: 3px solid var(--green-100);
    box-shadow: 0 4px 12px rgba(0,0,0,.1);
}

/* ── Blog card thumbnail images ── */
.blog-card > a {
    display: block;
    overflow: hidden;
    height: 200px;
    border-radius: var(--radius) var(--radius) 0 0;
}
.blog-card > a img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    transition: transform .35s ease;
}
.blog-card:hover > a img {
    transform: scale(1.05);
}

/* ── Blog post hero banner images ── */
.blog-hero-img-wrap {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 32px;
}
.blog-hero-img-wrap img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    display: block;
}

/* ── Blog inline diagram/chart images ── */
.inline-img-wrap {
    width: 100%;
    margin: 28px 0;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}
.inline-img-wrap img {
    width: 100%;
    height: auto;
    display: block;
}

/* ── Contact illustration ── */
.contact-img {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: 12px;
    margin: 0 auto;
    display: block;
}

/* ── illus-wrap (about/features sections) ── */
.illus-wrap img {
    width: 100%;
    height: auto;
    border-radius: var(--radius);
    display: block;
}

/* ── Split layout images ── */
.split .split-img img,
.split > div > img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    border-radius: 16px;
    display: block;
    box-shadow: 0 10px 40px rgba(0,0,0,.12);
}

/* ════════════════════════════════════════════
   TABLET — 1024px
   ════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .hero-img-wrap img    { height: 300px; }
    .story-img            { height: 300px; }
    .split .split-img img,
    .split > div > img    { height: 300px; }
    .blog-hero-img-wrap img { height: 340px; }
}

/* ════════════════════════════════════════════
   MOBILE — 768px
   ════════════════════════════════════════════ */
@media (max-width: 768px) {

    /* Hero section */
    .hero { padding: 48px 0 40px; }
    .hero .container > div {
        grid-template-columns: 1fr !important;
        gap: 24px !important;
    }
    .hero-img-wrap img    { height: 220px; }

    /* About page */
    .about-hero-img       { height: 220px; }
    .about-hero-overlay   { padding: 24px 16px; }
    .story-img            { height: 220px; margin-top: 0; }

    /* Split sections */
    .split .split-img img,
    .split > div > img    { height: 220px; }
    .split-img .badge-float { display: none; } /* hide badge on mobile */

    /* Blog thumbnails */
    .blog-card > a        { height: 180px; }
    .blog-card > a img    { height: 180px; }

    /* Blog hero banners */
    .blog-hero-img-wrap img { height: 200px; }

    /* Inline blog images */
    .inline-img-wrap      { margin: 20px 0; }

    /* Contact illustration */
    .contact-img          { max-width: 200px; }

    /* Team images */
    .team-img             { width: 80px; height: 80px; }

    /* About features grid */
    .features-2col        { grid-template-columns: 1fr !important; }
    .accuracy-grid        { grid-template-columns: 1fr !important; gap: 32px !important; }
    .team-grid            { grid-template-columns: 1fr !important; }

    /* About CTA section */
    section[style*="padding:56px 40px"] {
        padding: 36px 20px !important;
        border-radius: 12px !important;
        margin-bottom: 48px !important;
    }

    /* Blog grid on mobile */
    .blog-grid            { grid-template-columns: 1fr; }
}

/* ════════════════════════════════════════════
   SMALL MOBILE — 480px
   ════════════════════════════════════════════ */
@media (max-width: 480px) {
    .about-hero-img       { height: 180px; }
    .blog-hero-img-wrap img { height: 170px; }
    .hero-img-wrap img    { height: 180px; }
    .story-img            { height: 190px; }
    .split .split-img img,
    .split > div > img    { height: 190px; }
    .blog-card > a,
    .blog-card > a img    { height: 160px; }
}

/* ════════════════════════════════════════════
   HOME PAGE SPECIFIC RESPONSIVE FIXES
   ════════════════════════════════════════════ */

/* Hero grid — stacks on mobile */
.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

/* Split grids inside sections */
.split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

@media (max-width: 768px) {
    .hero-grid {
        grid-template-columns: 1fr !important;
        gap: 28px !important;
    }
    .hero-grid > div:first-child {
        text-align: center;
    }
    .hero-grid .hero-actions {
        justify-content: center;
    }
    .hero-grid > div:last-child {
        order: -1; /* image above text on mobile */
    }
    .split-grid {
        grid-template-columns: 1fr !important;
        gap: 28px !important;
    }
    /* Stats bar — 2 columns on mobile */
    .stats-grid {
        grid-template-columns: 1fr 1fr !important;
    }
    .stat-item { border-right: none !important; border-bottom: 1px solid var(--border); }
    .stat-item:nth-child(odd) { border-right: 1px solid var(--border) !important; }
    /* Testimonials — single column */
    .testimonial-grid { grid-template-columns: 1fr !important; }
    /* Value row — 2 col on mobile */
    .value-row { grid-template-columns: 1fr 1fr !important; }
    /* Footer grid */
    .footer-grid { grid-template-columns: 1fr !important; gap: 24px !important; }
    /* Blog grid */
    .blog-grid { grid-template-columns: 1fr !important; }
    /* Features grid */
    .features-grid { grid-template-columns: 1fr !important; }
}

@media (max-width: 480px) {
    .value-row { grid-template-columns: 1fr !important; }
    .stats-grid { grid-template-columns: 1fr 1fr !important; }
    .hero { padding: 40px 0 32px !important; }
}

/* ════════════════════════════════════════════
   ABOUT PAGE GRID BASE DEFINITIONS
   ════════════════════════════════════════════ */
.features-2col {
    grid-template-columns: 1fr 1fr;
}
.accuracy-grid {
    grid-template-columns: 1fr 1fr;
}

/* ════════════════════════════════════════════
   UTILITY RESPONSIVE GRID CLASSES
   ════════════════════════════════════════════ */

/* Reusable 2-column grid that stacks on mobile */
.grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}
.grid-2col-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.grid-2col-sm {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.grid-3col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 2px solid var(--border);
}

@media (max-width: 768px) {
    .grid-2col        { grid-template-columns: 1fr !important; gap: 32px !important; }
    .grid-2col-form   { grid-template-columns: 1fr !important; }
    .grid-2col-sm     { grid-template-columns: 1fr !important; gap: 16px !important; }
    .grid-3col        { grid-template-columns: 1fr 1fr !important; }
}

@media (max-width: 480px) {
    .grid-3col        { grid-template-columns: 1fr !important; }
}