/*
   AI Study Buddy - Teacher Portal Marketing Page
   Stylesheet
*/

/* ======= CSS VARIABLES ======= */
:root {
    --primary: #1C74D1;
    --primary-dark: #0B2B5B;
    --primary-light: #eff6ff;
    --primary-mid: #3b82f6;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --text-dark: #1e293b;
    --text-mid: #475569;
    --text-light: #94a3b8;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.15);
    --font-primary: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --radius: 12px;
    --radius-lg: 20px;
}

/* ======= RESET & BASE ======= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background: var(--white);
    line-height: 1.6;
    font-size: 16px;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ======= TOP BAR ======= */
#launch-bar {
    background: linear-gradient(90deg, var(--primary-dark), var(--primary));
    color: white;
    padding: 10px 0;
    text-align: center;
    font-size: 14px;
    position: relative;
    z-index: 1000;
}
#launch-bar .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.launch-btn {
    background: var(--accent);
    color: white;
    padding: 5px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 13px;
    transition: background 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.launch-btn:hover { background: var(--accent-dark); }

/* ======= HEADER ======= */
#header {
    background: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 999;
    border-bottom: 1px solid #e2e8f0;
}
#header .container { padding-top: 0; padding-bottom: 0; }
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
}
.logo img { width: 36px; height: 36px; object-fit: contain; }
.logo span {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 17px;
    color: var(--primary-dark);
}
.logo .badge {
    background: var(--primary);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 20px;
    margin-left: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}
.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-mid);
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--primary); }
.nav-cta {
    display: flex;
    align-items: center;
    gap: 12px;
}
.btn-outline {
    border: 1.5px solid var(--primary);
    color: var(--primary);
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s;
    cursor: pointer;
    background: transparent;
}
.btn-outline:hover {
    background: var(--primary-light);
}
.btn-primary {
    background: var(--primary);
    color: white;
    padding: 8px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(28,116,209,0.3);
}
.btn-primary-lg {
    padding: 14px 32px;
    font-size: 16px;
    border-radius: 10px;
}
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}
.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ======= HERO SECTION ======= */
.hero {
    background: linear-gradient(135deg, #0B2B5B 0%, #1C74D1 60%, #3b82f6 100%);
    color: white;
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
    border-radius: 50%;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.04) 0%, transparent 70%);
    border-radius: 50%;
}
.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.25);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}
.hero-badge i { color: var(--accent); }
.hero h1 {
    font-family: var(--font-primary);
    font-size: 46px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}
.hero h1 span {
    color: var(--accent);
}
.hero p {
    font-size: 18px;
    opacity: 0.9;
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 520px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 40px;
}
.btn-secondary {
    background: rgba(255,255,255,0.15);
    color: white;
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    border: 1.5px solid rgba(255,255,255,0.35);
    cursor: pointer;
    transition: all 0.2s;
    backdrop-filter: blur(10px);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.25);
    transform: translateY(-1px);
}
.hero-stats {
    display: flex;
    gap: 32px;
}
.hero-stat { text-align: left; }
.hero-stat .number {
    font-family: var(--font-primary);
    font-size: 28px;
    font-weight: 700;
    color: var(--accent);
}
.hero-stat .label {
    font-size: 13px;
    opacity: 0.8;
}
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}
.hero-mockup {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 20px;
    padding: 24px;
    backdrop-filter: blur(20px);
    width: 100%;
    max-width: 420px;
}
.mockup-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(255,255,255,0.15);
}
.mockup-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
}
.mockup-dot.red { background: #ef4444; }
.mockup-dot.yellow { background: #f59e0b; }
.mockup-dot.green { background: #22c55e; }
.mockup-title {
    margin-left: 8px;
    font-size: 13px;
    font-weight: 500;
    opacity: 0.85;
}
.mockup-tools {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.mockup-tool {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 10px;
    padding: 12px;
    cursor: pointer;
    transition: all 0.2s;
}
.mockup-tool:hover {
    background: rgba(255,255,255,0.18);
    transform: translateY(-2px);
}
.mockup-tool .icon {
    font-size: 22px;
    margin-bottom: 6px;
}
.mockup-tool .name {
    font-size: 12px;
    font-weight: 600;
    opacity: 0.9;
}
.mockup-tool .desc {
    font-size: 11px;
    opacity: 0.6;
    margin-top: 2px;
}
.mockup-ai-bar {
    margin-top: 14px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 8px;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    opacity: 0.8;
}
.mockup-ai-bar i { color: var(--accent); }
.typing-cursor {
    display: inline-block;
    width: 2px;
    height: 14px;
    background: var(--accent);
    animation: blink 1s infinite;
    margin-left: 2px;
    vertical-align: middle;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ======= TRUST BAR ======= */
.trust-bar {
    background: white;
    border-bottom: 1px solid #e2e8f0;
    padding: 18px 0;
}
.trust-bar .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}
.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-mid);
}
.trust-item i { color: var(--primary); font-size: 16px; }

/* ======= SECTION SHARED ======= */
section { padding: 80px 0; }
.section-header {
    text-align: center;
    margin-bottom: 56px;
}
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.section-title {
    font-family: var(--font-primary);
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 14px;
    line-height: 1.3;
}
.section-sub {
    font-size: 17px;
    color: var(--text-mid);
    max-width: 580px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ======= FEATURES SECTION ======= */
#features { background: var(--bg-light); }
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--card-color, var(--primary));
    border-radius: 3px 3px 0 0;
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.feature-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 18px;
    background: var(--icon-bg, var(--primary-light));
    color: var(--icon-color, var(--primary));
}
.feature-card h3 {
    font-family: var(--font-primary);
    font-size: 17px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 10px;
}
.feature-card p {
    font-size: 14px;
    color: var(--text-mid);
    line-height: 1.65;
}
.feature-card .badge-new {
    display: inline-block;
    background: #dcfce7;
    color: #166534;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 20px;
    margin-left: 8px;
    vertical-align: middle;
    text-transform: uppercase;
}

/* ======= HOW IT WORKS ======= */
#how-it-works { background: white; }
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}
.steps-grid::before {
    content: '';
    position: absolute;
    top: 36px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-light), var(--primary), var(--primary-light));
    z-index: 0;
}
.step-card {
    text-align: center;
    position: relative;
    z-index: 1;
}
.step-number {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: white;
    border: 3px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-primary);
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin: 0 auto 20px;
    position: relative;
    z-index: 2;
    box-shadow: 0 0 0 6px var(--primary-light);
    transition: all 0.3s;
}
.step-card:hover .step-number {
    background: var(--primary);
    color: white;
    transform: scale(1.1);
}
.step-card h3 {
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 10px;
}
.step-card p {
    font-size: 14px;
    color: var(--text-mid);
    line-height: 1.6;
}

/* ======= TOOLS SHOWCASE ======= */
#tools { background: var(--bg-light); }
.tools-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.tab-btn {
    padding: 9px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    border: 1.5px solid #e2e8f0;
    background: white;
    color: var(--text-mid);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 7px;
}
.tab-btn:hover, .tab-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(28,116,209,0.25);
}
.tool-display { display: none; }
.tool-display.active { display: block; }
.tool-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    background: white;
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-sm);
    border: 1px solid #e2e8f0;
}
.tool-detail h3 {
    font-family: var(--font-primary);
    font-size: 26px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 14px;
}
.tool-detail p {
    font-size: 15px;
    color: var(--text-mid);
    line-height: 1.7;
    margin-bottom: 20px;
}
.tool-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 28px;
}
.tool-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text-dark);
}
.tool-feature-item i {
    color: var(--primary);
    margin-top: 2px;
    flex-shrink: 0;
}
.tool-screenshot {
    background: linear-gradient(135deg, var(--primary-light), white);
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    padding: 28px;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.screenshot-line {
    background: #e2e8f0;
    border-radius: 4px;
    height: 12px;
}
.screenshot-line.short { width: 60%; }
.screenshot-line.medium { width: 80%; }
.screenshot-line.full { width: 100%; }
.screenshot-line.title {
    height: 18px;
    width: 55%;
    background: linear-gradient(90deg, var(--primary-light), #bfdbfe);
}
.screenshot-block {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}
.screenshot-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
    width: fit-content;
}

/* ======= TESTIMONIALS ======= */
#testimonials { background: white; }
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.testimonial-card {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s;
}
.testimonial-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}
.testimonial-rating {
    color: #f59e0b;
    font-size: 15px;
    margin-bottom: 14px;
    display: flex;
    gap: 2px;
}
.testimonial-text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-dark);
    margin-bottom: 20px;
    font-style: italic;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}
.author-avatar {
    width: 44px; height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}
.author-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary-dark);
}
.author-title {
    font-size: 12px;
    color: var(--text-light);
}

/* ======= PRICING ======= */
#pricing { background: var(--bg-light); }
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}
.pricing-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 2px solid #e2e8f0;
    transition: all 0.3s;
    position: relative;
}
.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.04);
    box-shadow: var(--shadow-lg);
}
.pricing-card:hover {
    box-shadow: var(--shadow-md);
}
.pricing-badge {
    position: absolute;
    top: -13px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 20px;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.pricing-plan {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}
.pricing-price {
    margin-bottom: 6px;
}
.pricing-price .amount {
    font-family: var(--font-primary);
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-dark);
}
.pricing-price .currency {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-mid);
    vertical-align: super;
}
.pricing-price .period {
    font-size: 14px;
    color: var(--text-light);
    margin-left: 2px;
}
.pricing-desc {
    font-size: 14px;
    color: var(--text-mid);
    margin-bottom: 24px;
    line-height: 1.5;
}
.pricing-divider {
    height: 1px;
    background: #e2e8f0;
    margin: 20px 0;
}
.pricing-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 28px;
}
.pricing-feature {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text-dark);
}
.pricing-feature i.yes { color: #22c55e; }
.pricing-feature i.no { color: #e2e8f0; }
.pricing-feature.disabled { color: var(--text-light); }
.btn-pricing {
    width: 100%;
    padding: 13px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    text-align: center;
    display: block;
}
.btn-pricing.outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}
.btn-pricing.outline:hover {
    background: var(--primary-light);
}
.btn-pricing.solid {
    background: var(--primary);
    color: white;
}
.btn-pricing.solid:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 16px rgba(28,116,209,0.3);
}

/* ======= CTA SECTION ======= */
#cta {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: white;
    padding: 80px 0;
    text-align: center;
}
#cta h2 {
    font-family: var(--font-primary);
    font-size: 38px;
    font-weight: 700;
    margin-bottom: 16px;
}
#cta p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 36px;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}
.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.btn-cta-primary {
    background: var(--accent);
    color: white;
    padding: 15px 36px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.btn-cta-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}
.btn-cta-secondary {
    background: rgba(255,255,255,0.15);
    color: white;
    padding: 15px 32px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    border: 1.5px solid rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(10px);
}
.btn-cta-secondary:hover {
    background: rgba(255,255,255,0.25);
}
.cta-note {
    font-size: 13px;
    opacity: 0.7;
}

/* ======= FAQ ======= */
#faq { background: white; }
.faq-list {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    border: 1px solid #e2e8f0;
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow 0.2s;
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-question {
    padding: 18px 22px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: 15px;
    color: var(--primary-dark);
    background: white;
    user-select: none;
    transition: background 0.2s;
}
.faq-question:hover { background: var(--primary-light); }
.faq-question i { color: var(--primary); transition: transform 0.3s; font-size: 14px; }
.faq-item.open .faq-question i { transform: rotate(45deg); }
.faq-answer {
    display: none;
    padding: 0 22px 18px;
    font-size: 14px;
    color: var(--text-mid);
    line-height: 1.7;
    border-top: 1px solid #f1f5f9;
}
.faq-item.open .faq-answer { display: block; }

/* ======= FOOTER ======= */
footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.75);
    padding: 60px 0 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}
.footer-brand .logo-footer {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-brand .logo-footer span {
    font-family: var(--font-primary);
    font-size: 18px;
    font-weight: 700;
    color: white;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 280px;
}
.footer-social {
    display: flex;
    gap: 12px;
}
.social-link {
    width: 36px; height: 36px;
    border-radius: 8px;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    color: rgba(255,255,255,0.7);
    transition: all 0.2s;
}
.social-link:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}
.footer-col h4 {
    font-family: var(--font-primary);
    font-size: 14px;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}
.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-col ul a {
    font-size: 14px;
    transition: color 0.2s;
}
.footer-col ul a:hover { color: white; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
}

/* ======= MOBILE NAV ======= */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: white;
    z-index: 1100;
    flex-direction: column;
    padding: 24px;
    overflow-y: auto;
}
.mobile-menu.open { display: flex; }
.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}
.mobile-menu-close {
    width: 36px; height: 36px;
    border-radius: 8px;
    background: #f1f5f9;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-dark);
}
.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 24px;
}
.mobile-nav-links a {
    padding: 14px 16px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    border-radius: 10px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 10px;
}
.mobile-nav-links a:hover { background: var(--primary-light); color: var(--primary); }
.mobile-nav-links a i { width: 20px; text-align: center; }
.mobile-nav-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: auto;
}

/* ======= RESPONSIVE ======= */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid::before { display: none; }
    .pricing-card.featured { transform: none; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .hero .container { grid-template-columns: 1fr; gap: 40px; }
    .hero { padding: 60px 0; }
    .hero h1 { font-size: 32px; }
    .hero p { font-size: 16px; }
    .hero-visual { display: none; }
    .hero-stats { gap: 20px; }
    .nav-links, .nav-cta { display: none; }
    .hamburger { display: flex; }
    .features-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 28px; }
    .tool-detail { grid-template-columns: 1fr; gap: 28px; padding: 28px; }
    #cta h2 { font-size: 28px; }
    .footer-grid { grid-template-columns: 1fr; }
}

/* ======= ANIMATIONS ======= */
.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-up.visible {
    opacity: 1;
    transform: none;
}