/* ==========================================================================
   Pharwatch — Landing Page
   ========================================================================== */

/* ---------- Animations ---------- */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Page Layout ---------- */

.landing-page {
    overflow-x: hidden;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ---------- Navigation ---------- */

.landing-nav {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-lg) 0;
}

.landing-nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.landing-nav__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.landing-nav__logo img {
    height: 40px;
    width: auto;
}

.landing-nav__logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-inverse);
    letter-spacing: -0.02em;
}

.landing-nav__actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.landing-nav__link {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    font-weight: 500;
    padding: var(--space-xs) var(--space-md);
    transition: color var(--transition-fast);
}

.landing-nav__link:hover {
    color: var(--color-text-inverse);
}

/* ---------- Hero ---------- */

.hero {
    position: relative;
    background-color: var(--color-primary);
    padding: 10rem 0 6rem;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(239, 68, 68, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(239, 68, 68, 0.3), transparent);
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 680px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-full);
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-lg);
    animation: fadeIn 0.6s ease both;
}

.hero__badge::before {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    background: var(--color-secondary);
    border-radius: 50%;
}

.hero__title {
    color: var(--color-text-inverse);
    font-size: 2.25rem;
    line-height: 1.15;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.7s ease 0.1s both;
}

.hero__title em {
    font-style: normal;
    color: var(--color-secondary);
}

.hero__subtitle {
    color: rgba(255, 255, 255, 0.65);
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: var(--space-2xl);
    max-width: 540px;
    animation: fadeInUp 0.7s ease 0.2s both;
}

.hero__actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    animation: fadeInUp 0.7s ease 0.3s both;
}

.hero__actions .button {
    padding: 0.75rem 2rem;
}

/* ---------- Features ---------- */

.features {
    padding: 6rem 0;
    background: var(--color-surface);
}

.section-header {
    text-align: center;
    max-width: 560px;
    margin: 0 auto var(--space-3xl);
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-secondary);
    margin-bottom: var(--space-sm);
}

.section-title {
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xl);
    }
}

.feature-card {
    position: relative;
    padding: var(--space-xl);
    background: var(--color-surface);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: var(--space-xl);
    right: var(--space-xl);
    height: 2px;
    background: var(--color-secondary);
    border-radius: 0 0 2px 2px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card:hover {
    border-color: var(--color-border);
    box-shadow: var(--shadow-md);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card__icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), #2d3358);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    color: var(--color-text-inverse);
    font-size: 1.125rem;
}

.feature-card__title {
    color: var(--color-primary);
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.feature-card__desc {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ---------- How It Works ---------- */

.how-it-works {
    padding: 6rem 0;
    background: var(--color-background);
}

.steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    position: relative;
}

@media (min-width: 768px) {
    .steps {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-2xl);
    }

    .steps::before {
        content: '';
        position: absolute;
        top: 32px;
        left: calc(16.67% + 24px);
        right: calc(16.67% + 24px);
        height: 2px;
        background: linear-gradient(90deg, var(--color-border), var(--color-secondary), var(--color-border));
        z-index: 0;
    }
}

.step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step__number {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.step:hover .step__number {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

.step__title {
    color: var(--color-primary);
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.step__desc {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    max-width: 280px;
    margin: 0 auto;
}

/* ---------- CTA Banner ---------- */

.cta-banner {
    padding: 5rem 0;
    background: var(--color-primary);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(239, 68, 68, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.cta-banner__content {
    position: relative;
    text-align: center;
    max-width: 520px;
    margin: 0 auto;
}

.cta-banner__title {
    color: var(--color-text-inverse);
    font-size: 1.75rem;
    margin-bottom: var(--space-md);
}

.cta-banner__subtitle {
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.0625rem;
    margin-bottom: var(--space-2xl);
    line-height: 1.6;
}

/* ---------- Footer ---------- */

.landing-footer {
    padding: var(--space-2xl) 0;
    background: #141729;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.landing-footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

@media (min-width: 768px) {
    .landing-footer .container {
        flex-direction: row;
        justify-content: space-between;
    }
}

.landing-footer__brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.landing-footer__brand img {
    height: 28px;
    width: auto;
    opacity: 0.7;
}

.landing-footer__brand-text {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    font-weight: 500;
}

.landing-footer__links {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.landing-footer__links a {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.8125rem;
    transition: color var(--transition-fast);
}

.landing-footer__links a:hover {
    color: rgba(255, 255, 255, 0.7);
}

.landing-footer__copy {
    color: rgba(255, 255, 255, 0.25);
    font-size: 0.75rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 767px) {
    .hero {
        padding: 7rem 0 4rem;
    }

    .hero__title {
        font-size: 1.75rem;
    }

    .hero__subtitle {
        font-size: 1rem;
    }

    .hero__actions {
        flex-direction: column;
    }

    .hero__actions .button {
        text-align: center;
    }

    .features,
    .how-it-works {
        padding: 4rem 0;
    }

    .section-header {
        margin-bottom: var(--space-2xl);
    }

    .cta-banner {
        padding: 3.5rem 0;
    }

    .cta-banner__title {
        font-size: 1.5rem;
    }

    .landing-footer .container {
        text-align: center;
    }

    .landing-footer__links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .landing-nav__logo-text {
        display: none;
    }

    .hero__badge {
        font-size: 0.6875rem;
    }
}

@media (min-width: 768px) {
    .hero__title {
        font-size: 3rem;
    }

    .hero__subtitle {
        font-size: 1.1875rem;
    }
}