/* =====================================================
   APPCRAFT STUDIO — Portfolio Website Styles
   Modern Dark Mode with Neon Purple/Blue Accents
   ===================================================== */

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

:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --bg-glass: rgba(22, 22, 31, 0.7);
    --border-color: rgba(124, 58, 237, 0.15);
    --border-subtle: rgba(255, 255, 255, 0.06);

    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b80;

    --accent-primary: #7c3aed;
    --accent-secondary: #a855f7;
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --gradient-primary: linear-gradient(135deg, #7c3aed, #3b82f6);
    --gradient-text: linear-gradient(135deg, #a855f7, #06b6d4);
    --gradient-glow: linear-gradient(135deg, rgba(124, 58, 237, 0.4), rgba(59, 130, 246, 0.4));

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 2rem;
    --font-4xl: 2.75rem;
    --font-5xl: 3.5rem;

    /* Spacing */
    --section-py: 6rem;
    --container-px: 1.5rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-px);
}

/* ── Gradient Text ── */
.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ── Section Common ── */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 3.5rem;
}

.section-tag {
    font-size: var(--font-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-secondary);
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: var(--font-4xl);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-desc {
    font-size: var(--font-lg);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius-full);
    font-family: var(--font-family);
    font-size: var(--font-base);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 25px rgba(124, 58, 237, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 35px rgba(124, 58, 237, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid var(--border-color);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    border-color: var(--accent-primary);
    background: rgba(124, 58, 237, 0.08);
    transform: translateY(-2px);
}

/* =====================================================
   HEADER & NAVIGATION
   ===================================================== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all var(--transition-base);
    background: transparent;
}

#header.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-weight: 700;
    font-size: var(--font-xl);
    z-index: 1001;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    font-size: var(--font-sm);
    font-weight: 800;
    color: #fff;
    font-family: 'Courier New', monospace;
}

.logo-text .accent {
    color: var(--accent-secondary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    font-size: var(--font-sm);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    position: relative;
}

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

.nav-link.active {
    background: rgba(124, 58, 237, 0.12);
    color: var(--accent-secondary);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.hamburger .bar {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.hamburger.active .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}
.hamburger.active .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 72px;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.12) 0%, rgba(59, 130, 246, 0.06) 40%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    padding: 2rem 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-xs);
    font-weight: 500;
    color: var(--accent-secondary);
    margin-bottom: 1.5rem;
    letter-spacing: 0.03em;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: var(--font-5xl);
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: var(--font-lg);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 520px;
}

.hero-cta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: inline;
    font-size: var(--font-3xl);
    font-weight: 800;
    color: var(--text-primary);
}

.stat-plus {
    font-size: var(--font-xl);
    font-weight: 700;
    color: var(--accent-secondary);
}

.stat-label {
    display: block;
    font-size: var(--font-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.25rem;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-subtle);
}

/* ── Phone Mockup ── */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.phone-mockup {
    position: relative;
    z-index: 2;
}

.phone-frame {
    width: 280px;
    height: 560px;
    background: #1a1a2e;
    border-radius: 40px;
    border: 3px solid rgba(124, 58, 237, 0.3);
    padding: 12px;
    position: relative;
    box-shadow:
        0 0 0 1px rgba(255,255,255,0.05),
        0 25px 60px rgba(0,0,0,0.5),
        0 0 80px rgba(124, 58, 237, 0.15);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.phone-notch {
    width: 120px;
    height: 28px;
    background: #0a0a0f;
    border-radius: 0 0 16px 16px;
    margin: 0 auto;
    position: relative;
    z-index: 3;
}

.phone-screen {
    width: 100%;
    height: calc(100% - 28px);
    background: linear-gradient(180deg, #0f0f1a 0%, #12121f 100%);
    border-radius: 0 0 28px 28px;
    overflow: hidden;
    position: relative;
}

.screen-content {
    padding: 1rem;
    height: 100%;
}

.screen-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.screen-time {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.screen-icons {
    display: flex;
    gap: 3px;
}

.screen-icon-bar {
    width: 12px;
    height: 4px;
    background: var(--text-muted);
    border-radius: 2px;
}

.screen-app-preview {
    text-align: center;
    padding-top: 1rem;
}

.screen-app-icon {
    width: 64px;
    height: 64px;
    background: rgba(124, 58, 237, 0.15);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    border: 1px solid rgba(124, 58, 237, 0.2);
}

.screen-app-title {
    font-size: var(--font-sm);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.screen-app-rating {
    font-size: var(--font-xs);
    color: #fbbf24;
    margin-bottom: 1.25rem;
}

.screen-cards {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    padding: 0 0.5rem;
}

.screen-card {
    height: 40px;
    background: rgba(255,255,255,0.04);
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.04);
}

.screen-card.short {
    width: 65%;
}

.screen-btn-mock {
    margin-top: 1.25rem;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: 20px;
    opacity: 0.8;
}

.phone-glow {
    position: absolute;
    inset: -30px;
    background: radial-gradient(ellipse at center, rgba(124, 58, 237, 0.2) 0%, transparent 70%);
    z-index: -1;
    filter: blur(30px);
}

/* Floating Badges */
.floating-badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: var(--font-xs);
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
    z-index: 3;
    animation: float-badge 5s ease-in-out infinite;
}

.badge-kotlin {
    top: 15%;
    left: -5%;
    animation-delay: 0s;
}

.badge-android {
    bottom: 25%;
    left: -15%;
    animation-delay: -1.5s;
}

.badge-play {
    top: 30%;
    right: -10%;
    animation-delay: -3s;
}

@keyframes float-badge {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* =====================================================
   APPS / PORTFOLIO SECTION
   ===================================================== */
.apps-section {
    padding: var(--section-py) 0;
    position: relative;
}

/* Filter Tabs */
.filter-tabs {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
}

.filter-btn {
    padding: 0.55rem 1.25rem;
    background: transparent;
    color: var(--text-secondary);
    border: 1.5px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-family: var(--font-family);
    font-size: var(--font-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.filter-btn.active {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

/* Apps Grid */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 1.75rem;
}

/* App Card */
.app-card {
    opacity: 1;
    transform: translateY(0);
    transition: all var(--transition-slow);
}

.app-card.hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

.app-card-inner {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.app-card-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.app-card-inner:hover {
    background: var(--bg-card-hover);
    border-color: rgba(124, 58, 237, 0.2);
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.3), 0 0 40px rgba(124, 58, 237, 0.08);
}

.app-card-inner:hover::before {
    opacity: 1;
}

.app-icon-wrapper {
    margin-bottom: 1.25rem;
}

.app-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

.app-info {
    flex: 1;
}

.app-category-tag {
    display: inline-block;
    font-size: var(--font-xs);
    font-weight: 600;
    color: var(--accent-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.5rem;
}

.app-title {
    font-size: var(--font-xl);
    font-weight: 700;
    margin-bottom: 0.65rem;
    letter-spacing: -0.01em;
}

.app-description {
    font-size: var(--font-sm);
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 1rem;
}

.app-features {
    margin-bottom: 1.5rem;
}

.app-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-sm);
    color: var(--text-secondary);
    padding: 0.25rem 0;
}

.app-features li svg {
    flex-shrink: 0;
}

.play-badge {
    display: block;
    margin-top: auto;
    transition: transform var(--transition-fast);
}

.play-badge:hover {
    transform: scale(1.03);
}

.play-badge img {
    height: 48px;
    width: auto;
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */
.about-section {
    padding: var(--section-py) 0;
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 4rem;
    align-items: center;
}

.about-image-area {
    position: relative;
}

.about-image-frame {
    position: relative;
    z-index: 1;
}

.about-avatar {
    width: 320px;
    height: 380px;
    background: linear-gradient(145deg, var(--bg-card), var(--bg-secondary));
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}

.about-avatar::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(124, 58, 237, 0.08), transparent 60%);
}

.avatar-placeholder-text {
    font-size: var(--font-sm);
    color: var(--text-muted);
    font-weight: 500;
}

.about-decoration {
    position: relative;
    margin-top: -3rem;
    margin-left: 4rem;
    z-index: 2;
}

.code-block-float {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    font-size: var(--font-xs);
    line-height: 1.8;
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
    display: inline-block;
}

.code-keyword { color: #c084fc; }
.code-string { color: #34d399; }
.code-func { color: #60a5fa; }

.about-content .section-tag {
    text-align: left;
}

.about-content .section-title {
    text-align: left;
    margin-bottom: 1.5rem;
}

.about-text {
    color: var(--text-secondary);
    font-size: var(--font-base);
    margin-bottom: 1rem;
    line-height: 1.75;
}

.about-text strong {
    color: var(--text-primary);
    font-weight: 600;
}

.about-highlights {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: rgba(124, 58, 237, 0.04);
    border: 1px solid rgba(124, 58, 237, 0.08);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.highlight-item:hover {
    background: rgba(124, 58, 237, 0.08);
    border-color: rgba(124, 58, 237, 0.15);
}

.highlight-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-sm);
}

.highlight-item h4 {
    font-size: var(--font-base);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.highlight-item p {
    font-size: var(--font-sm);
    color: var(--text-muted);
    line-height: 1.5;
}

/* =====================================================
   TECH STACK SECTION
   ===================================================== */
.tech-section {
    padding: var(--section-py) 0;
    overflow: hidden;
}

.tech-marquee-wrapper {
    position: relative;
    overflow: hidden;
    mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}

.tech-marquee {
    display: flex;
    gap: 2.5rem;
    animation: marquee 35s linear infinite;
    width: max-content;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.tech-marquee:hover {
    animation-play-state: paused;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.tech-icon-box {
    width: 80px;
    height: 80px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.tech-icon-box:hover {
    border-color: var(--accent-primary);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.15);
}

.tech-item span {
    font-size: var(--font-xs);
    color: var(--text-muted);
    font-weight: 500;
}

.tech-fallback {
    font-size: var(--font-lg);
    font-weight: 700;
    color: var(--accent-secondary);
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */
.contact-section {
    padding: var(--section-py) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info .section-tag,
.contact-info .section-title {
    text-align: left;
}

.contact-desc {
    color: var(--text-secondary);
    font-size: var(--font-base);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.contact-link:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
    transform: translateX(6px);
}

.contact-link-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-sm);
    color: var(--accent-secondary);
    flex-shrink: 0;
}

.contact-link-label {
    display: block;
    font-size: var(--font-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.contact-link-value {
    font-size: var(--font-sm);
    font-weight: 500;
    color: var(--text-primary);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
}

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

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

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

.form-group input,
.form-group textarea {
    background: var(--bg-secondary);
    border: 1.5px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: var(--font-base);
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: 100%;
    justify-content: center;
}

.form-status {
    text-align: center;
    font-size: var(--font-sm);
    font-weight: 500;
    min-height: 1.5rem;
}

.form-status.success {
    color: #22c55e;
}

.form-status.error {
    color: #ef4444;
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    padding: 4rem 0 0;
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-secondary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: var(--font-sm);
    line-height: 1.6;
    max-width: 280px;
}

.footer-links-group h4 {
    font-size: var(--font-sm);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-links-group ul {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.footer-links-group a {
    font-size: var(--font-sm);
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.footer-links-group a:hover {
    color: var(--accent-secondary);
}

.footer-socials {
    display: flex;
    gap: 0.75rem;
}

.footer-socials a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.footer-socials a:hover {
    color: var(--accent-secondary);
    border-color: var(--accent-primary);
    background: rgba(124, 58, 237, 0.1);
    transform: translateY(-3px);
}

.footer-bottom {
    padding: 1.5rem 0;
    border-top: 1px solid var(--border-subtle);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-xs);
    color: var(--text-muted);
}

/* =====================================================
   BACK TO TOP BUTTON
   ===================================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
    z-index: 900;
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.35);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
}

/* =====================================================
   SCROLL REVEAL ANIMATIONS
   ===================================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --font-5xl: 2.75rem;
        --font-4xl: 2.25rem;
        --section-py: 4.5rem;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .hero-content {
        order: 1;
    }

    .hero-visual {
        order: 0;
    }

    .hero-subtitle {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .phone-frame {
        width: 240px;
        height: 480px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .about-image-area {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .about-decoration {
        margin-left: 0;
    }

    .about-content .section-tag,
    .about-content .section-title {
        text-align: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .contact-info .section-tag,
    .contact-info .section-title {
        text-align: center;
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --font-5xl: 2.25rem;
        --font-4xl: 1.75rem;
        --font-3xl: 1.5rem;
        --section-py: 3.5rem;
        --container-px: 1.25rem;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem 2rem 2rem;
        gap: 0.25rem;
        transition: right var(--transition-base);
        border-left: 1px solid var(--border-subtle);
    }

    .nav-links.open {
        right: 0;
    }

    .nav-link {
        width: 100%;
        padding: 0.85rem 1rem;
        font-size: var(--font-base);
    }

    .hamburger {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding-top: 100px;
        padding-bottom: 3rem;
    }

    .hero-badge {
        font-size: 0.65rem;
    }

    .phone-frame {
        width: 200px;
        height: 400px;
        border-radius: 30px;
    }

    .phone-notch {
        width: 90px;
        height: 22px;
    }

    .floating-badge {
        display: none;
    }

    .hero-stats {
        gap: 1.25rem;
    }

    .stat-number {
        font-size: var(--font-2xl);
    }

    .apps-grid {
        grid-template-columns: 1fr;
    }

    .filter-tabs {
        flex-wrap: wrap;
    }

    .about-avatar {
        width: 260px;
        height: 300px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer-tagline {
        max-width: 100%;
    }

    .footer-socials {
        justify-content: center;
    }

    .contact-form-wrapper {
        padding: 1.5rem;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    :root {
        --font-5xl: 1.85rem;
        --font-4xl: 1.5rem;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

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