/* ═══════════════════════════════════════════════════════════════
   Deploy & Enjoy — Premium App & Website Development
   ═══════════════════════════════════════════════════════════════ */

:root {
    --bg-primary: #06090F;
    --bg-secondary: #0C1018;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --bg-elevated: #151d2e;

    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-medium: rgba(255, 255, 255, 0.1);
    --border-accent: rgba(99, 102, 241, 0.3);

    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;

    --accent-start: #6366F1;
    --accent-mid: #8B5CF6;
    --accent-end: #A78BFA;
    --accent-glow: rgba(99, 102, 241, 0.15);

    --gradient-text: linear-gradient(135deg, #6366F1, #8B5CF6, #A78BFA);
    --gradient-btn: linear-gradient(135deg, #6366F1, #7C3AED);
    --gradient-btn-hover: linear-gradient(135deg, #7C3AED, #6366F1);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;

    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

/* ── Full-Page Background ────────────────────────────────── */
.page-bg {
    position: fixed; inset: 0; z-index: -1;
}
.page-bg-img {
    width: 100%; height: 100%; object-fit: cover;
    opacity: 0.2;
}
.page-bg-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(6,9,15,0.3) 0%, rgba(6,9,15,0.5) 50%, rgba(6,9,15,0.7) 100%);
}

/* ── Typography ──────────────────────────────────────────── */
.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.accent { color: var(--accent-start); }
.section-header { text-align: center; max-width: 680px; margin: 0 auto 4rem; }
.section-tag {
    display: inline-block;
    font-size: 0.8rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 2px;
    color: var(--accent-start);
    margin-bottom: 1rem;
    padding: 6px 14px;
    border: 1px solid var(--border-accent);
    border-radius: 999px;
    background: var(--accent-glow);
}
.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 700; line-height: 1.15;
    letter-spacing: -0.02em; margin-bottom: 1rem;
}
.section-desc { font-size: 1.1rem; color: var(--text-secondary); line-height: 1.7; }
.section { padding: 7rem 0; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; font-family: var(--font-primary);
    font-size: 0.95rem; font-weight: 600;
    border-radius: var(--radius-md); cursor: pointer;
    border: none; transition: all var(--transition-base);
}
.btn-primary {
    background: var(--gradient-btn); color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
}
.btn-primary:hover {
    background: var(--gradient-btn-hover);
    box-shadow: 0 6px 25px rgba(99, 102, 241, 0.5);
    transform: translateY(-2px);
}
.btn-ghost {
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
    background: transparent;
}
.btn-ghost:hover { border-color: var(--accent-start); color: var(--accent-start); background: var(--accent-glow); }
.btn-nav {
    padding: 10px 22px; font-size: 0.85rem;
    background: var(--gradient-btn); color: white; border-radius: var(--radius-sm);
}
.btn-nav:hover { box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4); transform: translateY(-1px); }
.btn-lg { padding: 18px 36px; font-size: 1.05rem; border-radius: var(--radius-lg); }

/* ── Navbar ──────────────────────────────────────────────── */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%;
    z-index: 1000; padding: 1.2rem 0;
    background: transparent; transition: all var(--transition-smooth);
}
.navbar.scrolled {
    padding: 0.8rem 0;
    background: rgba(6, 9, 15, 0.92);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
}
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo-img { height: 36px; width: 36px; border-radius: var(--radius-sm); object-fit: contain; }
.nav-logo-text { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; letter-spacing: -0.02em; }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links li a { font-size: 0.9rem; font-weight: 500; color: var(--text-secondary); transition: color var(--transition-fast); }
.nav-links li a:hover { color: var(--text-primary); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; z-index: 1001; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: all var(--transition-base); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ── Hero ────────────────────────────────────────────────── */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.particles { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.particle {
    position: absolute; width: 3px; height: 3px;
    background: var(--accent-start); border-radius: 50%; opacity: 0;
    animation: float-particle 6s ease-in-out infinite;
}
@keyframes float-particle {
    0% { opacity: 0; transform: translateY(0) scale(0); }
    20% { opacity: 0.6; } 80% { opacity: 0.3; }
    100% { opacity: 0; transform: translateY(-120px) scale(1); }
}
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 820px; padding: 6rem 0 4rem; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.85rem; font-weight: 500; color: var(--text-secondary);
    padding: 8px 18px; border: 1px solid var(--border-subtle);
    border-radius: 999px; margin-bottom: 2rem;
    background: rgba(255,255,255,0.03); backdrop-filter: blur(10px);
}
.badge-dot { width: 8px; height: 8px; background: #22C55E; border-radius: 50%; animation: pulse-dot 2s ease-in-out infinite; }
@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 0 rgba(34,197,94,0.4); }
    50% { box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 7vw, 4.5rem);
    font-weight: 800; line-height: 1.08;
    letter-spacing: -0.03em; margin-bottom: 1.5rem;
}
.hero-subtitle { font-size: 1.15rem; color: var(--text-secondary); line-height: 1.7; max-width: 620px; margin: 0 auto 2.5rem; }
.hero-actions { display: flex; justify-content: center; gap: 1rem; margin-bottom: 3.5rem; }
.hero-stats { display: flex; justify-content: center; align-items: center; gap: 2.5rem; }
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-number { font-family: var(--font-display); font-size: 2.2rem; font-weight: 800; line-height: 1; }
.stat-suffix { font-family: var(--font-display); font-size: 2.2rem; font-weight: 800; color: var(--accent-start); line-height: 1; }
.stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }
.stat-divider { width: 1px; height: 40px; background: var(--border-subtle); }

/* ── Services ────────────────────────────────────────────── */
.services-section { background: rgba(12, 16, 24, 0.7); backdrop-filter: blur(2px); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.service-card {
    background: var(--bg-card); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg); padding: 2rem;
    transition: all var(--transition-smooth); position: relative; overflow: hidden;
}
.service-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: var(--gradient-btn); opacity: 0; transition: opacity var(--transition-base);
}
.service-card:hover { border-color: var(--border-accent); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.service-card:hover::before { opacity: 1; }
.service-icon {
    width: 52px; height: 52px; border-radius: var(--radius-md);
    background: var(--accent-glow); border: 1px solid var(--border-accent);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.2rem; color: var(--accent-start);
}
.service-card h3 { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; margin-bottom: 0.6rem; }
.service-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.65; margin-bottom: 1.2rem; }
.service-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.service-tags span {
    font-size: 0.72rem; font-weight: 500; padding: 4px 10px;
    border-radius: 999px; border: 1px solid var(--border-subtle);
    color: var(--text-muted); background: rgba(255,255,255,0.02);
}

/* ── Portfolio ────────────────────────────────────────────── */
.portfolio-filters {
    display: flex; justify-content: center; gap: 8px;
    margin-bottom: 3rem;
}
.filter-btn {
    padding: 10px 22px; font-family: var(--font-primary);
    font-size: 0.85rem; font-weight: 500;
    border: 1px solid var(--border-subtle); border-radius: 999px;
    background: transparent; color: var(--text-muted);
    cursor: pointer; transition: all var(--transition-base);
}
.filter-btn:hover { color: var(--text-primary); border-color: var(--border-medium); }
.filter-btn.active {
    background: var(--gradient-btn); color: white;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.folio-card {
    background: var(--card-bg, var(--bg-card));
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}
.folio-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: var(--card-accent, var(--accent-start));
    opacity: 0;
    transition: opacity var(--transition-base);
}
.folio-card:hover {
    border-color: color-mix(in srgb, var(--card-accent, var(--accent-start)) 30%, transparent);
    transform: translateY(-4px);
    box-shadow: 0 8px 40px color-mix(in srgb, var(--card-accent, var(--accent-start)) 12%, transparent);
}
.folio-card:hover::before { opacity: 1; }

.folio-card--wide { grid-column: span 2; }

.folio-top {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 1.5rem;
}
.folio-industry {
    font-size: 0.7rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 1.5px;
    color: var(--card-accent, var(--accent-start));
}
.folio-platforms { display: flex; gap: 5px; }
.folio-platforms span {
    font-size: 0.65rem; font-weight: 600; padding: 3px 10px;
    border-radius: 999px;
    background: rgba(255,255,255,0.04);
    color: var(--text-muted);
    border: 1px solid rgba(255,255,255,0.06);
}

.folio-icon {
    width: 56px; height: 56px;
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--card-accent, var(--accent-start)) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--card-accent, var(--accent-start)) 20%, transparent);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.2rem;
}

.folio-card h3 {
    font-family: var(--font-display);
    font-size: 1.15rem; font-weight: 700;
    margin-bottom: 0.5rem;
}
.folio-card p {
    font-size: 0.88rem; color: var(--text-secondary);
    line-height: 1.65; margin-bottom: 1.2rem;
}

.folio-tech { display: flex; flex-wrap: wrap; gap: 6px; }
.folio-tech span {
    font-size: 0.7rem; font-weight: 500; padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,0.06);
    color: var(--text-muted);
    background: rgba(255,255,255,0.02);
}

.folio-card.hidden { display: none; }

/* ── Process ─────────────────────────────────────────────── */
.process-section { background: rgba(12, 16, 24, 0.7); backdrop-filter: blur(2px); }
.process-timeline {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 2rem; position: relative;
}
.process-timeline::before {
    content: ''; position: absolute; top: 36px; left: 10%; right: 10%; height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-start), var(--accent-mid), var(--accent-end), transparent);
    opacity: 0.3;
}
.process-step { text-align: center; position: relative; }
.step-number {
    font-family: var(--font-display); font-size: 1.8rem; font-weight: 800;
    background: var(--gradient-text); -webkit-background-clip: text;
    -webkit-text-fill-color: transparent; background-clip: text;
    margin-bottom: 1.5rem; position: relative; z-index: 1;
}
.step-number::after {
    content: ''; position: absolute; bottom: -8px; left: 50%;
    transform: translateX(-50%); width: 12px; height: 12px;
    border-radius: 50%; background: var(--accent-start);
    box-shadow: 0 0 12px rgba(99,102,241,0.5);
}
.step-content h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; margin-bottom: 0.6rem; }
.step-content p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

/* ── Why Us ──────────────────────────────────────────────── */
.why-grid {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}
.why-card {
    background: var(--bg-card); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg); padding: 2.5rem;
    transition: all var(--transition-smooth); position: relative;
}
.why-card:hover { border-color: var(--border-accent); transform: translateY(-3px); box-shadow: var(--shadow-glow); }
.why-number {
    font-family: var(--font-display); font-size: 3rem; font-weight: 800;
    background: var(--gradient-text); -webkit-background-clip: text;
    -webkit-text-fill-color: transparent; background-clip: text;
    line-height: 1; margin-bottom: 1rem; opacity: 0.5;
}
.why-card h3 { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; margin-bottom: 0.6rem; }
.why-card p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.7; }

/* ── Tech Stack ──────────────────────────────────────────── */
.stack-section { background: rgba(12, 16, 24, 0.7); backdrop-filter: blur(2px); }
.stack-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1rem; }
.stack-item {
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    padding: 1.5rem 1rem; background: var(--bg-card);
    border: 1px solid var(--border-subtle); border-radius: var(--radius-md);
    transition: all var(--transition-base);
}
.stack-item:hover { border-color: var(--border-accent); transform: translateY(-3px); box-shadow: var(--shadow-glow); }
.stack-icon { font-size: 1.8rem; }
.stack-item span { font-size: 0.78rem; font-weight: 500; color: var(--text-secondary); text-align: center; }

/* ── Contact ─────────────────────────────────────────────── */
.contact-section { padding: 5rem 0 7rem; }
.contact-card {
    text-align: center; max-width: 650px; margin: 0 auto;
    padding: 4rem 3rem; background: var(--bg-card);
    border: 1px solid var(--border-subtle); border-radius: var(--radius-xl);
    position: relative; overflow: hidden;
}
.contact-card::before {
    content: ''; position: absolute; inset: -1px;
    border-radius: var(--radius-xl); padding: 1px;
    background: linear-gradient(135deg, var(--accent-start), transparent 40%, transparent 60%, var(--accent-end));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none;
}
.contact-card .section-title { margin-bottom: 1rem; }
.contact-card p { color: var(--text-secondary); font-size: 1.05rem; margin-bottom: 2rem; line-height: 1.7; }
.contact-sub { font-size: 0.85rem !important; color: var(--text-muted) !important; margin-top: 1rem !important; margin-bottom: 0 !important; }
.contact-actions { display: flex; justify-content: center; }

/* ── Footer ──────────────────────────────────────────────── */
.footer { padding: 3rem 0 2rem; border-top: 1px solid var(--border-subtle); }
.footer-container { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }
.footer-brand p { color: var(--text-muted); font-size: 0.85rem; margin-top: 4px; text-align: center; }
.footer-links { display: flex; gap: 2rem; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); transition: color var(--transition-fast); }
.footer-links a:hover { color: var(--text-primary); }
.footer-bottom p { font-size: 0.78rem; color: var(--text-muted); }

/* ── Chat Widget ────────────────────────────────────────── */
.chat-fab {
    position: fixed; bottom: 28px; right: 28px; z-index: 9999;
    width: 60px; height: 60px; border-radius: 50%;
    background: var(--gradient-btn); color: white;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; border: none;
    box-shadow: 0 4px 20px rgba(99,102,241,0.4);
    transition: all var(--transition-base);
    animation: fabPulse 3s ease-in-out infinite;
}
.chat-fab:hover { transform: scale(1.1); box-shadow: 0 6px 30px rgba(99,102,241,0.55); }
.chat-fab.active { animation: none; transform: scale(0.9); opacity: 0.7; }
@keyframes fabPulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(99,102,241,0.4); }
    50% { box-shadow: 0 4px 30px rgba(99,102,241,0.6), 0 0 0 8px rgba(99,102,241,0.1); }
}

.chat-fab-badge {
    position: absolute; top: -4px; right: -4px;
    width: 22px; height: 22px; border-radius: 50%;
    background: #EF4444; color: white;
    font-size: 0.7rem; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    border: 2px solid var(--bg-primary);
}

.chat-panel {
    position: fixed; bottom: 100px; right: 28px; z-index: 9998;
    width: 380px; max-height: 520px; border-radius: var(--radius-xl);
    background: var(--bg-card); border: 1px solid var(--border-subtle);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
    display: flex; flex-direction: column;
    opacity: 0; transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: all var(--transition-smooth);
    overflow: hidden;
}
.chat-panel.open {
    opacity: 1; transform: translateY(0) scale(1);
    pointer-events: auto;
}

.chat-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(139,92,246,0.1));
    border-bottom: 1px solid var(--border-subtle);
}
.chat-header-info { display: flex; align-items: center; gap: 12px; }
.chat-avatar {
    width: 38px; height: 38px; border-radius: 50%;
    background: var(--gradient-btn); color: white;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.7rem; font-weight: 800; letter-spacing: -0.02em;
}
.chat-header-title { font-family: var(--font-display); font-size: 0.95rem; font-weight: 700; }
.chat-header-status { font-size: 0.72rem; color: var(--text-muted); display: flex; align-items: center; gap: 5px; }
.chat-status-dot { width: 6px; height: 6px; border-radius: 50%; background: #22C55E; display: inline-block; }
.chat-close {
    background: none; border: none; color: var(--text-muted);
    cursor: pointer; padding: 4px; border-radius: 6px;
    transition: all var(--transition-fast);
}
.chat-close:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }

.chat-messages {
    flex: 1; padding: 16px; overflow-y: auto;
    display: flex; flex-direction: column; gap: 10px;
    max-height: 320px; min-height: 200px;
    scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.chat-bubble {
    max-width: 85%; padding: 10px 14px;
    border-radius: 14px; font-size: 0.88rem;
    line-height: 1.55; word-wrap: break-word;
    animation: fadeUp 0.3s ease;
}
.chat-bubble p { margin: 0; }
.chat-bubble--user {
    align-self: flex-end; margin-left: auto;
    background: var(--gradient-btn); color: white;
    border-bottom-right-radius: 4px;
}
.chat-bubble--agent {
    align-self: flex-start;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border-subtle);
    border-bottom-left-radius: 4px;
}
.chat-time {
    display: block; font-size: 0.65rem;
    color: rgba(255,255,255,0.4); margin-top: 4px;
}
.chat-bubble--user .chat-time { text-align: right; color: rgba(255,255,255,0.6); }

.chat-name-bar {
    padding: 0 16px 4px;
}
.chat-name-input {
    width: 100%; padding: 8px 12px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary); font-family: var(--font-primary);
    font-size: 0.82rem; outline: none;
    transition: border-color var(--transition-fast);
}
.chat-name-input:focus { border-color: var(--accent-start); }

.chat-input-bar {
    display: flex; gap: 8px; padding: 12px 16px;
    border-top: 1px solid var(--border-subtle);
    background: rgba(0,0,0,0.2);
}
.chat-input {
    flex: 1; padding: 10px 14px;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary); font-family: var(--font-primary);
    font-size: 0.88rem; outline: none;
    transition: border-color var(--transition-fast);
}
.chat-input::placeholder { color: var(--text-muted); }
.chat-input:focus { border-color: var(--accent-start); }
.chat-send {
    width: 42px; height: 42px; border-radius: var(--radius-md);
    background: var(--gradient-btn); border: none; color: white;
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: all var(--transition-fast); flex-shrink: 0;
}
.chat-send:hover { box-shadow: 0 4px 15px rgba(99,102,241,0.4); transform: scale(1.05); }

/* ── Animations ──────────────────────────────────────────── */
.anim-fade-up { opacity: 0; transform: translateY(24px); animation: fadeUp 0.8s ease forwards; }
.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }
.delay-4 { animation-delay: 0.6s; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .folio-card--wide { grid-column: span 2; }
    .process-timeline { grid-template-columns: repeat(2, 1fr); gap: 3rem; }
    .process-timeline::before { display: none; }
    .stack-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 768px) {
    .container { padding: 0 1.5rem; }
    .section { padding: 5rem 0; }
    .nav-links {
        position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
        background: rgba(6,9,15,0.98); backdrop-filter: blur(20px);
        flex-direction: column; justify-content: center; align-items: center; gap: 2rem;
        transform: translateY(-100%); transition: transform var(--transition-smooth); z-index: 999;
    }
    .nav-links.active { transform: translateY(0); }
    .nav-links li a { font-size: 1.3rem; color: var(--text-primary); }
    .hamburger { display: flex; }

    .hero-title { font-size: clamp(2rem, 8vw, 3rem); }
    .hero-subtitle { font-size: 1rem; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-stats { gap: 1.5rem; }
    .stat-number, .stat-suffix { font-size: 1.8rem; }

    .services-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .folio-card--wide { grid-column: span 1; }
    .why-grid { grid-template-columns: 1fr; }
    .stack-grid { grid-template-columns: repeat(3, 1fr); }
    .process-timeline { grid-template-columns: 1fr; gap: 2rem; }
    .process-step { text-align: left; display: flex; gap: 1.5rem; align-items: flex-start; }
    .step-number { margin-bottom: 0; min-width: 50px; }
    .step-number::after { display: none; }

    .contact-card { padding: 2.5rem 1.5rem; }
    .footer-links { flex-wrap: wrap; justify-content: center; gap: 1rem 1.5rem; }
    .chat-panel { right: 12px; left: 12px; width: auto; bottom: 90px; max-height: 70vh; }
    .chat-fab { bottom: 20px; right: 20px; width: 54px; height: 54px; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.2rem; }
    .hero { min-height: 100dvh; }
    .hero-content { padding: 5rem 0 3rem; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .folio-card--wide { grid-column: span 1; }
    .stack-grid { grid-template-columns: repeat(2, 1fr); }
    .portfolio-filters { flex-wrap: wrap; }
}