/* ============================================
   PostOptimist Sea Salt Soda — Index
   ============================================ */

/* ---- Hero ---- */
.hero {
    padding: 170px 0 110px;
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(ellipse 55% 45% at 88% 0%, rgba(44, 141, 166, 0.13), transparent),
        radial-gradient(ellipse 45% 40% at 10% 18%, rgba(168, 206, 62, 0.14), transparent),
        linear-gradient(180deg, var(--sky) 0%, var(--bg) 100%);
}

.hero::before,
.hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.hero::before {
    width: 220px;
    height: 220px;
    top: 60px;
    right: 6%;
    border: 2px solid rgba(44, 141, 166, 0.18);
    background:
        radial-gradient(circle 7px at 30% 60%, rgba(44, 141, 166, 0.22) 98%, transparent),
        radial-gradient(circle 11px at 68% 32%, rgba(44, 141, 166, 0.16) 98%, transparent),
        radial-gradient(circle 5px at 55% 75%, rgba(168, 206, 62, 0.3) 98%, transparent);
    animation: bubbleRise 9s ease-in-out infinite;
}

.hero::after {
    width: 300px;
    height: 300px;
    bottom: -80px;
    left: -60px;
    border: 2px solid rgba(168, 206, 62, 0.2);
    background:
        radial-gradient(circle 9px at 40% 35%, rgba(44, 141, 166, 0.18) 98%, transparent),
        radial-gradient(circle 6px at 70% 65%, rgba(44, 141, 166, 0.15) 98%, transparent);
    animation: bubbleRise 11s ease-in-out infinite reverse;
}

.hero-content {
    text-align: center;
    max-width: 820px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 9px 20px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--navy-soft);
    margin-bottom: 28px;
}

.hero-title {
    font-size: clamp(2.8rem, 7vw, 4.6rem);
    font-weight: 800;
    line-height: 1.07;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.hero-subtitle {
    color: var(--muted);
    font-size: 1.18rem;
    max-width: 640px;
    margin: 0 auto 36px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 64px;
}

/* ---- Trust bar ---- */
.trust-bar {
    display: inline-flex;
    align-items: center;
    gap: 0;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 8px 30px rgba(23, 95, 118, 0.1);
    padding: 26px 46px;
}

.trust-item {
    text-align: center;
    padding: 0 36px;
}

.trust-value {
    font-size: 1.9rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #3BA5BE, #175F76);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.trust-label {
    font-size: 0.84rem;
    color: var(--muted);
    font-weight: 500;
}

.trust-divider {
    width: 1px;
    height: 44px;
    background: var(--border);
}

/* ---- Features ---- */
.features {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 80px;
    left: -120px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    border: 2px solid rgba(44, 141, 166, 0.14);
    background:
        radial-gradient(circle 8px at 35% 40%, rgba(44, 141, 166, 0.16) 98%, transparent),
        radial-gradient(circle 5px at 65% 70%, rgba(168, 206, 62, 0.26) 98%, transparent);
    animation: bubbleRise 12s ease-in-out infinite;
    pointer-events: none;
}

.features-header {
    text-align: center;
    margin-bottom: 56px;
}

/* ---- Hero tall (bottom-anchored) ---- */
.hero-tall {
    min-height: 88vh;
    display: flex;
    align-items: flex-end;
    padding: 150px 0 70px;
}

.hero-tall .container {
    width: 100%;
}

.hero-tall .hero-content {
    max-width: 900px;
}

.hero-tall .hero-title {
    font-size: clamp(3.2rem, 9vw, 6.4rem);
    letter-spacing: -0.04em;
}

.hero-tall .hero-subtitle {
    font-size: 1.2rem;
}

.hero-tall .hero-buttons {
    margin-bottom: 48px;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    max-width: 980px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.feature-card {
    display: grid;
    grid-template-columns: 96px 1fr;
    gap: 32px;
    align-items: start;
    padding: 36px 44px;
}

.feature-num {
    font-size: clamp(2.6rem, 5vw, 3.4rem);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, rgba(59, 165, 190, 0.85), rgba(23, 95, 118, 0.8));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-head {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 10px;
}

.feature-head .feature-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 0;
    flex-shrink: 0;
}

.feature-head h3 {
    font-size: 1.35rem;
    margin-bottom: 0;
}

.feature-body p {
    max-width: 700px;
    margin-bottom: 16px;
}

.feature-icon {
    width: 62px;
    height: 62px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(44, 141, 166, 0.14), rgba(168, 206, 62, 0.16));
    border: 1px solid rgba(44, 141, 166, 0.22);
    margin-bottom: 24px;
}

.feature-icon img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--muted);
    font-size: 0.96rem;
    margin-bottom: 18px;
}

.feature-link {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--accent-deep);
    transition: color 0.2s ease;
}

.feature-link:hover {
    color: var(--lime);
}

/* ---- Security ---- */
.security {
    padding: 100px 0;
    background: linear-gradient(140deg, #123E4A 0%, #1F7590 110%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.security::before {
    content: '';
    position: absolute;
    top: 50px;
    right: 8%;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    border: 2px solid rgba(169, 220, 232, 0.2);
    background:
        radial-gradient(circle 9px at 32% 55%, rgba(169, 220, 232, 0.25) 98%, transparent),
        radial-gradient(circle 6px at 62% 30%, rgba(168, 206, 62, 0.3) 98%, transparent);
    animation: bubbleRise 10s ease-in-out infinite;
}

.security::after {
    content: '';
    position: absolute;
    bottom: -140px;
    left: -60px;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(168, 206, 62, 0.14), transparent 65%);
    pointer-events: none;
}

.security-inner {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.security-text h2 {
    font-size: clamp(1.9rem, 4vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.security-text > p {
    color: rgba(230, 244, 248, 0.78);
    max-width: 540px;
    margin-bottom: 26px;
}

.security-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.security-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(230, 244, 248, 0.9);
    font-size: 0.98rem;
}

.security-list li::before {
    content: '✓';
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(168, 206, 62, 0.22);
    border-radius: 50%;
    font-size: 0.78rem;
    color: #CDE78A;
    font-weight: 700;
}

.security-badges {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.badge {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 26px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(169, 220, 232, 0.18);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: background 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.badge:hover {
    background: rgba(255, 255, 255, 0.11);
    border-color: rgba(169, 220, 232, 0.38);
    transform: translateX(6px);
}

.badge img {
    width: 34px;
    height: 34px;
    object-fit: contain;
}

.badge span {
    font-weight: 600;
    font-size: 0.98rem;
}

/* ---- Use Cases ---- */
.use-cases {
    padding: 100px 0;
    background:
        radial-gradient(ellipse 45% 40% at 100% 15%, rgba(168, 206, 62, 0.13), transparent),
        var(--sky);
}

.use-cases-header {
    text-align: center;
    margin-bottom: 56px;
}

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

.use-case-card {
    padding: 32px;
}

.use-case-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
}

.use-case-avatar {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--sky-deep);
    border: 2px solid rgba(44, 141, 166, 0.3);
}

.use-case-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.use-case-info h4 {
    font-size: 1.05rem;
}

.use-case-info p {
    font-size: 0.86rem;
    color: var(--muted);
}

.use-case-quote {
    font-size: 0.98rem;
    color: var(--navy-soft);
    padding-left: 16px;
    border-left: 3px solid var(--lime);
    font-style: italic;
}

/* ---- CTA ---- */
.cta {
    padding: 100px 0 110px;
}

.cta-card {
    text-align: center;
    padding: 80px 48px;
    border-radius: 24px;
    background: linear-gradient(135deg, #2C8DA6 0%, #175F76 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(23, 95, 118, 0.3);
}

.cta-card::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.16);
    background:
        radial-gradient(circle 8px at 35% 40%, rgba(255, 255, 255, 0.18) 98%, transparent),
        radial-gradient(circle 5px at 65% 70%, rgba(168, 206, 62, 0.35) 98%, transparent);
    animation: bubbleRise 9s ease-in-out infinite;
}

.cta-card::after {
    content: '';
    position: absolute;
    bottom: -120px;
    right: -40px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(168, 206, 62, 0.2), transparent 65%);
}

.cta-card h2 {
    font-size: clamp(2rem, 5vw, 3.1rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    position: relative;
}

.cta-card p {
    color: rgba(255, 255, 255, 0.82);
    margin-bottom: 36px;
    position: relative;
}

.cta-card .btn {
    position: relative;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
    .security-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 140px 0 80px;
    }

    .hero-tall {
        min-height: 0;
        display: block;
    }

    .hero-tall .hero-title {
        font-size: clamp(2.8rem, 9vw, 4rem);
    }

    .feature-card {
        grid-template-columns: 60px 1fr;
        gap: 20px;
        padding: 28px 24px;
    }

    .feature-num {
        font-size: 2.1rem;
    }

    .trust-bar {
        display: flex;
        flex-direction: column;
        gap: 20px;
        padding: 26px 30px;
    }

    .trust-divider {
        width: 44px;
        height: 1px;
    }

    .trust-item {
        padding: 0;
    }

    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .cta-card {
        padding: 48px 24px;
    }
}