/* 
 * TULLEM - CSS Base
 * iOS 26 Design System
 */

:root {
    /* Color Palette */
    --color-bg: #f5f5f7;
    /* Apple-like light gray background */
    --color-surface: rgba(255, 255, 255, 0.75);
    /* Glass surface */
    --color-surface-solid: #ffffff;
    --color-text-primary: #1d1d1f;
    --color-text-secondary: #86868b;
    --color-accent: #0097b3;
    /* TULLEM Blue */
    --color-accent-secondary: #7ed957;
    /* TULLEM Green */
    --color-accent-hover: #007a90;
    --color-dark: #000000;

    /* Typography */
    --font-primary: 'Roboto', sans-serif;

    /* Spacing & Layout */
    --container-max-width: 1200px;
    --container-padding: 2rem;
    --section-spacing: 6rem;
    --radius-sm: 8px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --radius-pill: 9999px;

    /* Effects */
    --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.04);
    --shadow-medium: 0 8px 32px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.12);
    --blur-strong: blur(20px);
    --blur-medium: blur(12px);

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-medium: 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

section {
    padding: var(--section-spacing) 0;
}

/* Typography Utility */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.text-gradient {
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: var(--radius-pill);
    font-weight: 500;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(0, 151, 179, 0.3);
}

.btn-sm {
    padding: 0.6rem 1.2rem;
    font-size: 0.95rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.6);
    backdrop-filter: var(--blur-strong);
    -webkit-backdrop-filter: var(--blur-strong);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all var(--transition-fast);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: -0.03em;
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text-primary);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

/* Footer */
.footer {
    background-color: var(--color-surface-solid);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2rem;
}

.footer-brand p {
    color: var(--color-text-secondary);
    margin-top: 1rem;
    max-width: 400px;
}

.footer-copy {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding-top: 2rem;
    width: 100%;
}

/* Utilities */
.card {
    background-color: var(--color-surface);
    backdrop-filter: var(--blur-medium);
    -webkit-backdrop-filter: var(--blur-medium);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(255, 255, 255, 0.5);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* --- Sections --- */

/* Hero */
.hero {
    padding-top: 150px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 151, 179, 0.15) 0%, rgba(126, 217, 87, 0.05) 70%);
    z-index: -1;
    filter: blur(60px);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: rgba(0, 151, 179, 0.1);
    color: var(--color-accent);
    border-radius: var(--radius-pill);
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.badge-warning {
    background-color: rgba(255, 149, 0, 0.1);
    color: #ff9500;
}

.hero-title {
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

.btn-secondary {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--color-text-primary);
}

.btn-secondary:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.hero-visual {
    position: relative;
}

.animation-float {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }

    100% {
        transform: translateY(0px);
    }
}

.hero-card {
    height: 400px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.4));
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

.stat-card {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 3rem;
    font-weight: 900;
    line-height: 1;
}

.stat-label {
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* Floating Logos */
.floating-logo {
    position: absolute;
    background-color: var(--color-surface-solid);
    border-radius: var(--radius-md);
    padding: 1rem;
    box-shadow: var(--shadow-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.floating-logo img {
    max-width: 85px;
    max-height: 85px;
    object-fit: contain;
}

.logo-ml {
    top: 5%;
    left: -5%;
    animation: float 5s ease-in-out infinite 0.5s;
}

.logo-full {
    top: 25%;
    right: -10%;
    animation: float 6s ease-in-out infinite 1s;
}

.logo-full img {
    max-width: 90px;
}

.logo-shopee {
    bottom: 20%;
    left: -10%;
    animation: float 5.5s ease-in-out infinite 1.5s;
}

.logo-tiktok {
    bottom: 10%;
    right: 5%;
    animation: float 6.5s ease-in-out infinite 2s;
}

/* About Section */
.section-alt {
    background-color: #ffffff;
}

.section-header {
    margin-bottom: 4rem;
}

.section-description {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    margin-top: 1rem;
}

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

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.about-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.about-card h3 {
    margin-bottom: 1rem;
}

.about-card p {
    color: var(--color-text-secondary);
}

/* Intelligence Section */
.intelligence-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.feature-list {
    margin-top: 3rem;
}

.feature-list li {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.feature-icon {
    font-size: 2rem;
    background: white;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.feature-text p {
    color: var(--color-text-secondary);
}

.glass-panel {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.2));
    border: 1px solid rgba(255, 255, 255, 0.8);
    height: 400px;
    display: flex;
    flex-direction: column;
}

.glass-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.glass-content h3 {
    margin-bottom: auto;
}

.fake-chart {
    display: flex;
    align-items: flex-end;
    gap: 1rem;
    height: 200px;
    margin-top: 2rem;
}

.bar {
    flex: 1;
    background-color: rgba(0, 151, 179, 0.2);
    border-radius: 4px 4px 0 0;
    animation: growUp 1.5s ease-out forwards;
    transform-origin: bottom;
}

.bar.brand-color {
    background-color: var(--color-accent);
}

@keyframes growUp {
    from {
        transform: scaleY(0);
    }

    to {
        transform: scaleY(1);
    }
}

/* Clients Section (Carousel) */
.bg-white {
    background-color: #ffffff;
}

.mb-4 {
    margin-bottom: 2rem;
}

.clients {
    overflow: hidden;
    padding-top: 3rem;
    padding-bottom: 4rem;
}

.carousel-wrapper {
    position: relative;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.carousel-track {
    display: inline-flex;
    align-items: center;
    gap: 4rem;
    animation: scrollCarousel 30s linear infinite;
}

.carousel-track:hover {
    animation-play-state: paused;
}

.client-logo {
    height: 200px;
    width: auto;
    max-width: 220px;
    object-fit: contain;
    filter: grayscale(100%) opacity(0.5);
    transition: filter 0.3s ease, transform 0.3s ease;
}

.client-logo:hover {
    filter: grayscale(0%) opacity(1);
    transform: scale(1.05);
}

@keyframes scrollCarousel {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(calc(-50% - 2rem));
    }

    /* -50% shifts by exactly half the container width (the original set) */
}

/* Growth Section */
.ml-color {
    color: #ffe600;
    text-shadow: 0 2px 10px rgba(255, 230, 0, 0.3);
    background: linear-gradient(90deg, #d4c000, #ffb300);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.growth-box {
    max-width: 800px;
    margin: 3rem auto 0;
    text-align: left;
}

.growth-text {
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.growth-alert {
    background-color: rgba(255, 149, 0, 0.05);
    border-left: 4px solid #ff9500;
    padding: 1.5rem;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-bottom: 2rem;
}

.growth-alert h3 {
    color: #cc7a00;
    margin-bottom: 0.5rem;
}

.mt-4 {
    margin-top: 1rem;
}

/* Marketplaces Section */
.marketplaces-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.marketplace-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    transition: var(--transition-medium);
}

.marketplace-card:hover {
    transform: translateY(-5px);
}

.marketplace-logo {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    /* iOS like squircle */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-small);
    transition: var(--transition-fast);
}

.marketplace-card:hover .marketplace-logo {
    box-shadow: var(--shadow-medium);
}

.marketplace-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    display: flex;
    flex-direction: column;
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.service-card p {
    color: var(--color-text-secondary);
    flex: 1;
}

/* Team Section */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    max-width: 800px;
    margin: 0 auto;
}

.team-card {
    text-align: center;
    padding: 3rem 2rem;
}

.team-avatar {
    width: 120px;
    height: 120px;
    object-fit: cover;
    display: block;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-medium);
    border: 3px solid #ffffff;
}

.team-role {
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.team-bio {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* Reviews Section */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.review-card {
    display: flex;
    flex-direction: column;
}

.stars {
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.review-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    flex: 1;
}

.review-author {
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.contact-details {
    margin-top: 3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    font-weight: 500;
}

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.form-control {
    padding: 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 0, 0, 0.1);
    background-color: rgba(255, 255, 255, 0.9);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0, 151, 179, 0.2);
}

textarea.form-control {
    resize: vertical;
}

.btn-block {
    width: 100%;
    margin-top: 1rem;
}

/* Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.1, 0.25, 1), transform 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

/* Responsive */
@media (max-width: 900px) {
    section {
        padding: 4rem 0;
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .nav {
        display: none;
    }

    .header .btn {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        gap: 5px;
        z-index: 1001;
    }

    .mobile-menu-toggle span {
        width: 24px;
        height: 2px;
        background-color: var(--color-text-primary);
        transition: var(--transition-fast);
    }

    .hero {
        padding-top: 120px;
        min-height: auto;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin: 0 auto 2.5rem;
    }

    .hero-cta {
        justify-content: center;
        flex-direction: column;
    }

    .hero-card {
        height: auto;
        padding: 3rem;
    }

    .intelligence-container,
    .contact-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-list li {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }

    .glass-panel {
        height: 250px;
        margin-top: 2rem;
    }
}