/*
  PhishGuard - Professional Phishing Detection
  Modern Dark Theme with Cybersecurity Aesthetic
*/

:root {
    /* Base Colors */
    --bg-primary: #0a0e1a;
    --bg-secondary: #0f1420;
    --bg-elevated: #151b2d;

    /* Accents */
    --accent-cyan: #00d4ff;
    --accent-blue: #0ea5e9;
    --accent-purple: #8b5cf6;

    /* Status Colors */
    --safe: #10b981;
    --suspicious: #f59e0b;
    --danger: #ef4444;

    /* Text Colors */
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.70);
    --text-muted: rgba(255, 255, 255, 0.50);

    /* Borders & Effects */
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-medium: rgba(255, 255, 255, 0.12);
    --glow-cyan: rgba(0, 212, 255, 0.15);
    --glow-blue: rgba(14, 165, 233, 0.20);

    /* Spacing */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    background-image:
        radial-gradient(circle at 20% 10%, rgba(0, 212, 255, 0.08), transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.06), transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(14, 165, 233, 0.05), transparent 40%);
}

/* ========================================
   NAVIGATION
======================================== */
.nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
}

.nav__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

/* Brand */
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 18px;
    transition: transform 0.2s;
}

.brand:hover {
    transform: translateY(-1px);
}

.brand__mark {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px var(--glow-cyan);
    position: relative;
}

.brand__mark--small {
    width: 36px;
    height: 36px;
}

.brand__shield {
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 4px;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.brand__shield::after {
    content: "";
    position: absolute;
    inset: 8px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
}

.brand__name {
    letter-spacing: -0.3px;
}

/* Trust Badge */
.trust {
    display: none;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    border-radius: 999px;
    font-size: 13px;
    color: var(--text-secondary);
}

.trust__lock {
    width: 14px;
    height: 14px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    border-radius: 3px;
    box-shadow: 0 0 12px var(--glow-cyan);
}

.dot {
    opacity: 0.4;
    font-size: 10px;
}

@media (min-width: 1000px) {
    .trust {
        display: flex;
    }
}

/* Navigation Links */
.nav__links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav__links a {
    padding: 8px 16px;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.nav__links a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav__links a.btn--cta {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: var(--bg-primary);
    font-weight: 600;
    box-shadow: 0 4px 16px var(--glow-cyan);
    border: none;
}

.nav__links a.btn--cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px var(--glow-blue);
}

/* Mobile Menu Toggle */
.nav__toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-medium);
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    cursor: pointer;
    padding: 12px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    transition: all 0.2s;
}

.nav__toggle:hover {
    background: rgba(255, 255, 255, 0.08);
}

.nav__toggle-lines {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 100%;
}

.nav__toggle-lines span {
    display: block;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s;
}

@media (max-width: 768px) {
    .nav__inner {
        padding: 12px 20px;
    }

    .trust {
        display: none;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__links {
        display: none;
        position: absolute;
        top: calc(100% + 12px);
        left: 20px;
        right: 20px;
        background: rgba(15, 20, 32, 0.98);
        backdrop-filter: blur(20px);
        border: 1px solid var(--border-medium);
        border-radius: var(--radius-lg);
        padding: 16px;
        flex-direction: column;
        gap: 8px;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
        max-height: 80vh;
        overflow-y: auto;
    }

    .nav__links a {
        width: 100%;
        padding: 14px 16px;
        text-align: center;
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid var(--border-subtle);
    }

    .nav--open .nav__links {
        display: flex;
    }
}


/* ========================================
   HERO SECTION
======================================== */
.hero {
    padding: 80px 24px 60px;
    text-align: center;
}

.hero__inner {
    max-width: 1000px;
    margin: 0 auto;
}

.hero__title {
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 20px;
}

.hero__title-accent {
    display: block;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__title-strong {
    display: block;
    color: var(--text-primary);
}

.hero__subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 48px;
    line-height: 1.7;
}

@media (max-width: 768px) {
    .hero {
        padding: 60px 20px 40px;
    }

    .hero__subtitle {
        font-size: 16px;
        margin-bottom: 36px;
    }
}

/* ========================================
   ANALYZER CARD
======================================== */
.card {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-elevated);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.05),
        0 20px 60px rgba(0, 0, 0, 0.4);
}

.card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card__title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.card__icon {
    font-size: 20px;
    opacity: 0.9;
}

/* Textarea */
.textarea {
    width: 100%;
    min-height: 200px;
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 15px;
    font-family: inherit;
    line-height: 1.6;
    resize: vertical;
    outline: none;
    transition: all 0.2s;
}

.textarea::placeholder {
    color: var(--text-muted);
}

.textarea:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px var(--glow-blue);
}

/* Card Footer */
.card__footer {
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.privacy {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-muted);
}

.privacy__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--safe);
    box-shadow: 0 0 12px var(--safe);
}

.card__actions {
    display: flex;
    gap: 12px;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    outline: none;
}

.btn--primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: var(--bg-primary);
    box-shadow: 0 4px 16px var(--glow-cyan);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px var(--glow-blue);
}

.btn--primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn--ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
}

.btn--ghost:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.card__status {
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-secondary);
    text-align: center;
}

@media (max-width: 768px) {
    .card {
        padding: 24px;
    }

    .card__footer {
        flex-direction: column;
        align-items: stretch;
    }

    .card__actions {
        width: 100%;
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}


/* ========================================
   RESULT DISPLAY
======================================== */
.result {
    margin-top: 24px;
    padding: 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all 0.3s;
}

.result--empty {
    opacity: 0.5;
}

.result__top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-subtle);
}

.risk,
.score {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.score {
    align-items: flex-end;
}

.risk__label,
.score__label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.risk__value {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.score__value {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.explain {
    margin-top: 20px;
}

.explain h3 {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.threats {
    list-style: none;
    padding: 0;
    margin: 0;
}

.threats li {
    padding: 10px 0;
    color: var(--text-secondary);
    font-size: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.threats li:last-child {
    border-bottom: none;
}

.threats li::before {
    content: "▸";
    color: var(--accent-cyan);
    font-weight: bold;
    flex-shrink: 0;
}

/* Risk States */
.result[data-risk="SAFE"] {
    border-color: rgba(16, 185, 129, 0.3);
    background: rgba(16, 185, 129, 0.05);
}

.result[data-risk="SAFE"] .risk__value {
    color: var(--safe);
}

.result[data-risk="SUSPICIOUS"] {
    border-color: rgba(245, 158, 11, 0.3);
    background: rgba(245, 158, 11, 0.05);
}

.result[data-risk="SUSPICIOUS"] .risk__value {
    color: var(--suspicious);
}

.result[data-risk="HIGH_RISK"] {
    border-color: rgba(239, 68, 68, 0.3);
    background: rgba(239, 68, 68, 0.05);
}

.result[data-risk="HIGH_RISK"] .risk__value {
    color: var(--danger);
}

/* ========================================
   FEATURES SECTION
======================================== */
.section {
    padding: 80px 24px;
}

.section__head {
    max-width: 900px;
    margin: 0 auto 60px;
    text-align: center;
}

.kicker {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.kicker__item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.kicker__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.kicker__dot--green {
    background: var(--safe);
    box-shadow: 0 0 10px var(--safe);
}

.kicker__dot--yellow {
    background: var(--suspicious);
    box-shadow: 0 0 10px var(--suspicious);
}

.kicker__dot--blue {
    background: var(--accent-blue);
    box-shadow: 0 0 10px var(--accent-blue);
}

.section__head h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1px;
    color: var(--text-primary);
}

.section__head p {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.features {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature {
    padding: 32px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all 0.3s;
}

.feature:hover {
    border-color: var(--border-medium);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.feature__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
}

.feature__icon--blue {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(14, 165, 233, 0.2));
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.15);
}

.feature__icon--red {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(220, 38, 38, 0.2));
    box-shadow: 0 8px 24px rgba(239, 68, 68, 0.15);
}

.feature__icon--green {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(5, 150, 105, 0.2));
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.15);
}

.feature h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 768px) {
    .section {
        padding: 60px 20px;
    }

    .features {
        grid-template-columns: 1fr;
    }
}


/* ========================================
   STATS SECTION
======================================== */
.stats {
    padding: 80px 24px;
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.3));
    border-top: 1px solid var(--border-subtle);
}

.stats__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat {
    padding: 24px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    transition: all 0.3s;
}

.stat:hover {
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-4px);
}

.stat__value {
    font-size: clamp(36px, 5vw, 52px);
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1.5px;
    margin-bottom: 8px;
}

.stat__label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

@media (max-width: 768px) {
    .stats {
        padding: 60px 20px;
    }

    .stats__inner {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .stats__inner {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   FOOTER
======================================== */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    padding: 60px 24px 24px;
}

.site-footer__inner {
    max-width: 1200px;
    margin: 0 auto 40px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-brand__top {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-brand p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-col a {
    display: block;
    padding: 6px 0;
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--accent-cyan);
}

.site-footer__bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 24px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.site-footer__bottom span {
    font-size: 13px;
    color: var(--text-muted);
}

.social {
    display: flex;
    gap: 12px;
}

.social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}

.social a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--accent-cyan);
    border-color: var(--border-medium);
}

@media (max-width: 768px) {
    .site-footer__inner {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 480px) {
    .site-footer__inner {
        grid-template-columns: 1fr;
    }

    .site-footer__bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ========================================
   UTILITY CLASSES
======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}