/* ─────────────────────────────────────────────
   PTO Admin Landing Page Styles
   Dark theme · Emerald accents · Glassmorphism
   ───────────────────────────────────────────── */

/* ── Reset & Variables ───────────────────── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0f1a;
    --bg-secondary: #0f172a;
    --bg-card: rgba(15, 23, 42, 0.6);
    --bg-card-hover: rgba(15, 23, 42, 0.8);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(16, 185, 129, 0.3);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --accent: #10b981;
    --accent-light: #34d399;
    --accent-dark: #059669;
    --accent-glow: rgba(16, 185, 129, 0.15);
    --accent-glow-strong: rgba(16, 185, 129, 0.25);

    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-label {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
}

/* ── Animations ──────────────────────────── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes glow {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.7; }
}

.animate-fade-up {
    animation: fadeUp 0.7s ease-out forwards;
    opacity: 0;
}

/* ── Navigation ──────────────────────────── */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.nav--scrolled {
    background: rgba(10, 15, 26, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 12px 0;
}

.nav__container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
}

.nav__logo-icon {
    font-size: 1.5rem;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav__links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition);
}

.nav__links a:hover {
    color: var(--text-primary);
}

.nav__cta {
    background: var(--accent) !important;
    color: var(--bg-primary) !important;
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 600 !important;
    transition: all var(--transition) !important;
}

.nav__cta:hover {
    background: var(--accent-light) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.nav__mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav__mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ── Hero ────────────────────────────────── */
.hero {
    position: relative;
    padding: 160px 0 100px;
    overflow: hidden;
    text-align: center;
}

.hero__bg-glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
    animation: glow 6s ease-in-out infinite;
    pointer-events: none;
}

.hero__container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--accent-glow);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--accent-light);
    margin-bottom: 28px;
}

.hero__badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s ease-in-out infinite;
}

.hero__title {
    font-size: clamp(2.5rem, 5.5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero__title-accent {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 50%, #6ee7b7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 560px;
    margin: 0 auto 36px;
}

.hero__form {
    max-width: 440px;
    margin: 0 auto 48px;
}

.hero__form-group {
    display: flex;
    gap: 8px;
    padding: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    transition: border-color var(--transition);
}

.hero__form-group:focus-within {
    border-color: var(--border-hover);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.hero__input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 12px 16px;
    font-family: var(--font);
    font-size: 0.95rem;
    color: var(--text-primary);
}

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

.hero__submit {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 12px 24px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition);
}

.hero__submit:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.hero__submit:active {
    transform: translateY(0);
}

.hero__submit--loading {
    pointer-events: none;
    opacity: 0.7;
}

.hero__submit-arrow {
    transition: transform var(--transition);
}

.hero__submit:hover .hero__submit-arrow {
    transform: translateX(3px);
}

.hero__form-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 10px;
}

.hero__stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
}

.hero__stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero__stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.hero__stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
}

.hero__stat-divider {
    width: 1px;
    height: 36px;
    background: var(--border-subtle);
}

/* ── Problem ─────────────────────────────── */
.problem {
    padding: 100px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.problem .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.problem__title {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.problem__text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.75;
}

.problem__cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.problem__card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.problem__card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateX(4px);
}

.problem__card-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.problem__card h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.problem__card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ── Features ────────────────────────────── */
.features {
    padding: 100px 0;
    text-align: center;
}

.features__title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 52px;
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    text-align: left;
}

.feature-card {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    cursor: default;
}

.feature-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3), 0 0 40px var(--accent-glow);
}

.feature-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--radius);
    color: var(--accent);
    margin-bottom: 18px;
}

.feature-card__title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card__text {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ── How It Works ────────────────────────── */
.how-it-works {
    padding: 100px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    text-align: center;
}

.how-it-works__title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 52px;
}

.how-it-works__steps {
    max-width: 560px;
    margin: 0 auto;
    text-align: left;
}

.step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.step__number {
    width: 44px;
    height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff;
    border-radius: 50%;
    font-size: 1.1rem;
    font-weight: 700;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.step__content {
    padding-top: 4px;
}

.step__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.step__text {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.step__connector {
    width: 2px;
    height: 32px;
    margin-left: 21px;
    background: linear-gradient(to bottom, var(--accent-glow-strong), transparent);
}

/* ── CTA ─────────────────────────────────── */
.cta {
    padding: 100px 0;
}

.cta__card {
    position: relative;
    text-align: center;
    padding: 64px 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.cta__glow {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 500px;
    height: 300px;
    background: radial-gradient(ellipse, var(--accent-glow-strong) 0%, transparent 70%);
    pointer-events: none;
}

.cta__title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
    position: relative;
}

.cta__text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 32px;
    position: relative;
}

.cta__form {
    display: flex;
    gap: 10px;
    max-width: 420px;
    margin: 0 auto 12px;
    position: relative;
}

.cta__input {
    flex: 1;
    padding: 14px 18px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.95rem;
    color: var(--text-primary);
    outline: none;
    transition: border-color var(--transition);
}

.cta__input:focus {
    border-color: var(--border-hover);
}

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

.cta__submit {
    padding: 14px 28px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition);
}

.cta__submit:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.cta__submit--loading {
    pointer-events: none;
    opacity: 0.7;
}

.cta__note {
    font-size: 0.78rem;
    color: var(--text-muted);
    position: relative;
}

/* ── Footer ──────────────────────────────── */
.footer {
    padding: 48px 0 32px;
    border-top: 1px solid var(--border-subtle);
}

.footer__content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
}

.footer__logo {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.footer__tagline {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer__links {
    display: flex;
    gap: 24px;
}

.footer__links a {
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: color var(--transition);
}

.footer__links a:hover {
    color: var(--accent);
}

.footer__bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-subtle);
}

.footer__bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ── Toast ───────────────────────────────── */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 200;
    pointer-events: none;
}

.toast--visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast__icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
    flex-shrink: 0;
}

.toast__message {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
}

/* ── Responsive ──────────────────────────── */
@media (max-width: 768px) {
    .nav__links {
        display: none;
    }

    .nav__mobile-toggle {
        display: flex;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero__title {
        font-size: 2.2rem;
    }

    .hero__subtitle {
        font-size: 1rem;
    }

    .hero__form-group {
        flex-direction: column;
    }

    .hero__submit {
        justify-content: center;
    }

    .hero__stats {
        flex-direction: column;
        gap: 20px;
    }

    .hero__stat-divider {
        width: 40px;
        height: 1px;
    }

    .problem .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .features__grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .features__title,
    .how-it-works__title,
    .problem__title,
    .cta__title {
        font-size: 1.6rem;
    }

    .cta__card {
        padding: 40px 24px;
    }

    .cta__form {
        flex-direction: column;
    }

    .footer__content {
        flex-direction: column;
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 1.8rem;
    }
}