/* ═══════════════════════════════════════════════════════════
   SIDONGAN Landing / Welcome Screen — Two-Column Hero
   Purple Theme
   ═══════════════════════════════════════════════════════════ */

*, *::before, *::after {
    font-family: "Plus Jakarta Sans", sans-serif;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary: #8b5cf6;
    --primary-dark: #6d28d9;
    --primary-light: #a78bfa;
    --primary-darker: #4c1d95;
    --bg-dark: #2e1065;
    --text: #334155;
    --text-light: #64748b;
    --radius: 16px;
}

html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
    color: var(--text);
    background: #f8fafc;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.accent {
    color: var(--primary);
}


/* ═══════════════ NAVBAR ═══════════════ */

.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,.06);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 90px;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo {
    height: 48px;
    width: auto;
    filter: brightness(0) saturate(100%) invert(22%) sepia(86%) saturate(2643%) hue-rotate(265deg) brightness(80%) contrast(95%);
}

.nav-brand {
    font-weight: 700;
    font-size: 22px;
    color: var(--primary-dark);
}

.btn-login-nav {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 30px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    background: var(--primary-dark);
    color: #fff;
    transition: all .3s;
}

.btn-login-nav svg {
    stroke: #fff;
}

.btn-login-nav:hover {
    background: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139,92,246,.3);
}


/* ═══════════════ HERO SECTION ═══════════════ */

.hero-section {
    flex: 1;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f5f3ff 0%, #fff 40%, #f5f3ff 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: "";
    position: absolute;
    top: -40%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139,92,246,.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.hero-section::after {
    content: "";
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(109,40,217,.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* Decorative shapes */
.hero-decor {
    position: absolute;
    z-index: 0;
    pointer-events: none;
}

.decor-1 {
    top: 12%;
    left: -10px;
    opacity: 1;
    animation: decorFloat 8s ease-in-out infinite;
}

.decor-2 {
    bottom: 18%;
    right: -5px;
    opacity: 1;
    animation: decorFloat 10s ease-in-out 2s infinite;
}

.decor-dots {
    top: 8%;
    right: 12%;
    opacity: 1;
    transform: scale(1.3);
    animation: decorFloat 12s ease-in-out 1s infinite;
}

.decor-wave {
    bottom: 6%;
    left: 3%;
    opacity: 1;
    transform: scale(1.2);
    animation: decorFloat 9s ease-in-out 3s infinite;
}

.decor-circle {
    top: 50%;
    right: 3%;
    opacity: 1;
    transform: scale(1.5);
    animation: decorSpin 20s linear infinite;
}

@keyframes decorFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes decorSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Ulos floating accents */
.ulos-float {
    position: absolute;
    height: 40px;
    background: url('/assets/landing/images/ulos-pattern.svg') repeat-x;
    background-size: auto 40px;
    opacity: .5;
    pointer-events: none;
    z-index: 0;
}

.ulos-1 {
    top: 25%;
    right: 0;
    width: 200px;
    transform: rotate(-3deg);
    animation: decorFloat 10s ease-in-out infinite;
}

.ulos-2 {
    bottom: 15%;
    left: 0;
    width: 180px;
    transform: rotate(2deg);
    animation: decorFloat 12s ease-in-out 3s infinite;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 40px 30px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}


/* ── LEFT: Info ── */

.hero-left {
    animation: fadeUp .7s ease-out;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

.hero-logos {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.hero-logo-small {
    height: 70px;
    width: auto;
    object-fit: contain;
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text);
    margin-bottom: 16px;
}

.hero-title .accent {
    color: var(--primary);
}

.hero-desc {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-light);
    margin-bottom: 24px;
    max-width: 520px;
}

.hero-features {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 28px;
    margin-bottom: 28px;
}

.hero-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text);
}

.hero-features li svg {
    color: var(--primary);
    flex-shrink: 0;
}

.cta-group {
    display: flex;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 32px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all .3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(139,92,246,.4);
}

.btn-primary svg {
    stroke: #fff;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(139,92,246,.5);
}


/* ── RIGHT: Leader Cards (SIEDA style) ── */

.hero-right {
    animation: fadeUp .7s ease-out .2s both;
}

.leaders-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: flex-end;
    position: relative;
}

.leader-card {
    position: relative;
    text-align: center;
    flex: 1;
    max-width: 240px;
    cursor: default;
    transition: transform .4s cubic-bezier(.25,.46,.45,.94);
}

.leader-card:first-child {
    z-index: 2;
}

.leader-card:last-child {
    z-index: 1;
}

.leader-card:first-child:hover,
.leader-card:last-child:hover {
    transform: translateY(-10px);
    z-index: 5;
}

.leader-photo {
    width: 240px;
    height: 320px;
    overflow: hidden;
}

.leader-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    display: block;
    transition: transform .4s cubic-bezier(.25,.46,.45,.94);
}

.leader-card:hover .leader-photo img {
    transform: scale(1.04);
}

.leader-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--primary-darker);
    color: #fff;
    padding: 14px 16px 12px;
    border-radius: 12px 12px 0 0;
    text-align: center;
    box-shadow: 0 -2px 12px rgba(0,0,0,.1);
    transition: background .3s;
    z-index: 3;
}

.leader-card:first-child .leader-label {
    z-index: 4;
}

.leader-card:last-child .leader-label {
    z-index: 3;
}

.leader-card:hover .leader-label {
    background: var(--primary-dark);
    z-index: 5;
}

.leader-name {
    display: block;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.35;
}

.leader-role {
    display: block;
    font-size: 11px;
    font-weight: 600;
    opacity: .85;
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: .5px;
}



/* ═══════════════ FOOTER ═══════════════ */

.landing-footer {
    background: var(--bg-dark);
    padding: 24px 0;
    margin-top: auto;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-brand {
    color: #fff;
    font-weight: 700;
    font-size: 20px;
}

.footer-copy {
    color: rgba(255,255,255,.5);
    font-size: 14px;
}

.footer-dev {
    margin-left: 12px;
    opacity: .6;
}


/* ═══════════════ RESPONSIVE ═══════════════ */

@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-left { order: 1; }
    .hero-right { order: 2; }

    .hero-title { font-size: 36px; }
    .hero-desc { margin: 0 auto 24px; }
    .hero-features { justify-items: center; }
    .cta-group { justify-content: center; }
    .leaders-group { justify-content: center; }
}

@media (max-width: 640px) {
    .nav-container { padding: 0 20px; }
    .hero-container { padding: 20px 20px; }
    .hero-title { font-size: 28px; }
    .hero-desc { font-size: 14px; }
    .hero-features { grid-template-columns: 1fr; max-width: 260px; margin: 0 auto 24px; }
    .btn { padding: 10px 24px; font-size: 14px; }
    .leaders-group { flex-direction: column; align-items: center; gap: 30px; }
    .leader-card:first-child, .leader-card:last-child { transform: none !important; }
    .leader-card:first-child:hover, .leader-card:last-child:hover { transform: translateY(-10px) !important; }
    .leader-photo { width: 180px; height: 250px; }
    .leader-label { padding: 12px 14px 10px; }
    .leader-name { font-size: 13px; }
    .leader-role { font-size: 10px; }
    .footer-inner { flex-direction: column; text-align: center; }
}