/* ==========================================================================
   CSS DESIGN SYSTEM & THEME TOKENS
   ui-ux-pro-max — "Modern Dark (Cinema)" — Fadil Andrian Portfolio
   ========================================================================== */

:root {
    /* ─── Base Colors (Dark / Default) ─────────────────────────────────── */
    --bg-main:        #0F172A;   /* OLED-safe deep slate                    */
    --bg-alt:         #0A0E1C;   /* slightly deeper for alt sections         */
    --bg-card:        rgba(27, 35, 54, 0.75);
    --bg-card-hover:  rgba(36, 47, 72, 0.88);
    --border-color:   rgba(255, 255, 255, 0.06);   /* hairline              */
    --border-highlight: rgba(94, 106, 210, 0.45);

    /* ─── Text ────────────────────────────────────────────────────────── */
    --text-main:  #F8FAFC;
    --text-muted: #94A3B8;
    --text-dim:   #64748B;

    /* ─── Brand ────────────────────────────────────────────────────────── */
    --primary:        #5E6AD2;   /* cinematic indigo                         */
    --primary-hover:  #4A55C0;
    --primary-glow:   rgba(94, 106, 210, 0.22);

    --accent-green:   #22C55E;   /* "run / hire" signal                      */
    --accent-green-hover: #16A34A;
    --accent-green-glow:  rgba(34, 197, 94, 0.22);

    --secondary:  #14B8A6;       /* teal — kept for tag/badge variety        */
    --accent:     #F59E0B;       /* amber — warning / alert                  */
    --success:    #22C55E;       /* = accent-green                           */
    --danger:     #EF4444;

    /* ─── Gradients ───────────────────────────────────────────────────── */
    --gradient-primary: linear-gradient(135deg, #5E6AD2 0%, #A855F7 55%, #EC4899 100%);
    --gradient-hero:    radial-gradient(ellipse 80% 60% at 50% -10%,
                            rgba(94, 106, 210, 0.18) 0%, transparent 70%);
    --gradient-card:    linear-gradient(180deg,
                            rgba(255,255,255,0.03) 0%, rgba(255,255,255,0) 100%);

    /* ─── Typography ─────────────────────────────────────────────────── */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-code: 'Fira Code', monospace;

    /* ─── Spacing & Shape ────────────────────────────────────────────── */
    --radius-sm:   8px;
    --radius-md:   14px;
    --radius-lg:   22px;
    --radius-full: 9999px;

    /* ─── Shadows ────────────────────────────────────────────────────── */
    --shadow-card:  0 10px 32px -8px rgba(0, 0, 0, 0.55);
    --shadow-glow:  0 0 28px var(--primary-glow);
    --shadow-green: 0 0 28px var(--accent-green-glow);

    /* ─── Motion (Expo.out — spring-feel) ───────────────────────────── */
    --easing:           cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast:  0.18s ease;
    --transition-normal: 0.32s var(--easing);
    --transition-slow:  0.55s var(--easing);
}

/* ── Light Theme Overrides ───────────────────────────────────────────────── */
[data-theme="light"] {
    --bg-main:        #F8FAFC;
    --bg-alt:         #EDF2F7;
    --bg-card:        rgba(255, 255, 255, 0.88);
    --bg-card-hover:  rgba(255, 255, 255, 0.98);
    --border-color:   rgba(0, 0, 0, 0.08);
    --border-highlight: rgba(94, 106, 210, 0.5);

    --text-main:  #0F172A;
    --text-muted: #475569;
    --text-dim:   #64748B;

    --shadow-card:  0 8px 28px -8px rgba(0, 0, 0, 0.1);
    --gradient-card: linear-gradient(180deg, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0.4) 100%);
    --gradient-hero: radial-gradient(ellipse 80% 60% at 50% -10%,
                        rgba(94,106,210,0.09) 0%, transparent 70%);
}

/* ==========================================================================
   RESET & BASE
   ========================================================================== */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

[data-theme="light"] html { color-scheme: light; }

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.65;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    position: relative;
}

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

ul { list-style: none; }

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 6.5rem 0;
    position: relative;
    z-index: 2;
}

.alt-bg { background-color: var(--bg-alt); }

/* ==========================================================================
   BACKGROUND AMBIENT BLOBS
   ========================================================================== */

.bg-blob {
    position: fixed;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    filter: blur(130px);
    pointer-events: none;
    z-index: 0;
    will-change: transform;
}

.blob-1 {
    top: -120px;
    right: -80px;
    background: #5E6AD2;
    opacity: 0.10;
    animation: blobFloat1 18s ease-in-out infinite alternate;
}

.blob-2 {
    top: 55vh;
    left: -120px;
    background: #A855F7;
    opacity: 0.08;
    animation: blobFloat2 22s ease-in-out infinite alternate;
}

.blob-3 {
    bottom: -80px;
    right: 15%;
    background: #14B8A6;
    opacity: 0.07;
    animation: blobFloat3 26s ease-in-out infinite alternate;
}

@keyframes blobFloat1 {
    0%   { transform: translate(0px, 0px); }
    33%  { transform: translate(-30px, 20px); }
    66%  { transform: translate(20px, -15px); }
    100% { transform: translate(-15px, 30px); }
}

@keyframes blobFloat2 {
    0%   { transform: translate(0px, 0px); }
    50%  { transform: translate(25px, -20px); }
    100% { transform: translate(-20px, 15px); }
}

@keyframes blobFloat3 {
    0%   { transform: translate(0px, 0px); }
    40%  { transform: translate(15px, 25px); }
    100% { transform: translate(-25px, -10px); }
}

/* ==========================================================================
   GLASSMORPHISM CARDS
   ========================================================================== */

.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    transition:
        transform var(--transition-normal),
        border-color var(--transition-normal),
        box-shadow var(--transition-normal);
}

.glass-card:hover {
    border-color: var(--border-highlight);
    box-shadow: var(--shadow-glow);
}

/* ==========================================================================
   SCROLL REVEAL
   ========================================================================== */

.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity var(--transition-slow),
        transform var(--transition-slow);
}

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

/* Stagger delays for grid children */
.reveal-stagger > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger > *:nth-child(2) { transition-delay: 0.12s; }
.reveal-stagger > *:nth-child(3) { transition-delay: 0.19s; }
.reveal-stagger > *:nth-child(4) { transition-delay: 0.26s; }
.reveal-stagger > *:nth-child(5) { transition-delay: 0.33s; }
.reveal-stagger > *:nth-child(6) { transition-delay: 0.40s; }

/* Honour reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
    .reveal,
    .reveal.visible {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .blob-1, .blob-2, .blob-3 {
        animation: none;
    }

    * {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

/* ==========================================================================
   TYPOGRAPHY & UI ELEMENTS
   ========================================================================== */

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.section-header {
    margin-bottom: 3.5rem;
}

.section-header.center {
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-subtitle {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2.5px;
    color: var(--primary);
    margin-bottom: 0.6rem;
    display: block;
    text-transform: uppercase;
}

.section-title {
    font-size: 2.35rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.7;
}

/* ── Badges ───────────────────────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    background: rgba(34, 197, 94, 0.10);
    border: 1px solid rgba(34, 197, 94, 0.28);
    color: var(--accent-green);
    font-size: 0.85rem;
    font-weight: 600;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 0 0 var(--accent-green-glow);
    animation: pulseGreen 2.2s ease-in-out infinite;
}

@keyframes pulseGreen {
    0%, 100% { transform: scale(0.92); box-shadow: 0 0 0 0 var(--accent-green-glow); }
    50%       { transform: scale(1.25); box-shadow: 0 0 0 6px transparent; }
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
    position: relative;
}

/* Primary — indigo */
.btn-primary {
    background: var(--primary);
    padding: 10px 18px;
    color: #FFFFFF;
    box-shadow: 0 4px 16px var(--primary-glow);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 24px rgba(94, 106, 210, 0.38);
}

.btn-primary:active {
    transform: scale(0.97);
    box-shadow: none;
}

/* CTA — green (hire / WhatsApp) */
.btn-cta {
    background: var(--accent-green);
    padding: 10px 18px;
    color: #0F172A;
    font-weight: 700;
    box-shadow: 0 4px 16px var(--accent-green-glow);
}

.btn-cta:hover {
    background: var(--accent-green-hover);
    color: #FFFFFF;
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 24px rgba(34, 197, 94, 0.38);
}

.btn-cta:active {
    transform: scale(0.97);
    box-shadow: none;
}

/* Secondary */
.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 10px 18px;
    color: var(--text-main);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-muted);
    transform: translateY(-2px);
}

.btn-secondary:active { transform: scale(0.97); }

/* Success */
.btn-success {
    padding: 10px 18px;
    background: var(--success);
    color: #0F172A;
    font-weight: 700;
}

.btn-success:hover  { background: #16A34A; color: #FFFFFF; }
.btn-success:active { transform: scale(0.97); }

/* Sizes */
.btn-sm { padding: 0.45rem 1rem; font-size: 0.875rem; }
.btn-md { padding: 0.75rem 1.5rem; font-size: 1rem; }
.btn-lg { padding: 0.9rem 2rem; font-size: 1.05rem; border-radius: var(--radius-md); }
.btn-block { width: 100%; }

/* Language switch fade */
[data-i18n] { transition: opacity 0.2s ease; }
.lang-fade  { opacity: 0 !important; }

/* ==========================================================================
   NAVBAR
   ========================================================================== */

.navbar-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: padding var(--transition-normal), background var(--transition-normal);
}

.navbar-container.scrolled {
    padding: 0.65rem 0;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] .navbar-container.scrolled {
    background: rgba(248, 250, 252, 0.88);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.logo-code {
    color: var(--accent-green);
    font-family: var(--font-code);
}

.logo-text .highlight { color: var(--primary); }

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

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-fast);
    border-radius: var(--radius-full);
}

.nav-link:hover::after,
.nav-link.active::after { width: 100%; }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.theme-toggle-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    transition: transform var(--transition-fast), background var(--transition-fast);
}

.theme-toggle-btn:hover {
    background: rgba(255,255,255,0.10);
    transform: rotate(18deg) scale(1.08);
}

[data-theme="dark"] .sun-icon  { display: block; color: var(--accent); }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon  { display: none; }
[data-theme="light"] .moon-icon { display: block; color: var(--primary); }

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-main);
    cursor: pointer;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero-section {
    padding-top: 10.5rem;
    padding-bottom: 6.5rem;
    background: var(--gradient-hero);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3.5rem;
    align-items: center;
}

.hero-badge { margin-bottom: 1.75rem; }

.hero-title {
    font-size: 3.25rem;
    font-weight: 800;
    line-height: 1.12;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.hero-description {
    font-size: 1.12rem;
    color: var(--text-muted);
    margin-bottom: 2.25rem;
    max-width: 600px;
    line-height: 1.75;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding-top: 1.75rem;
    border-top: 1px solid var(--border-color);
}

.stat-item { display: flex; flex-direction: column; }

.stat-num {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 38px;
    background: var(--border-color);
}

/* ── Code Window ──────────────────────────────────────────────────────────── */
.code-window {
    background: #080D16;
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: var(--radius-md);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(94,106,210,0.12);
    overflow: hidden;
}

.window-header {
    background: #0D1322;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.dots { display: flex; gap: 0.4rem; }

.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot.red    { background: #FF5F56; }
.dot.yellow { background: #FFBD2E; }
.dot.green  { background: #27C93F; }

.window-title {
    font-family: var(--font-code);
    font-size: 0.78rem;
    color: #8B949E;
}

.badge-mini {
    background: rgba(94, 106, 210, 0.18);
    color: var(--primary);
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.15rem 0.55rem;
    border-radius: var(--radius-sm);
}

.code-body {
    padding: 1.5rem 1.25rem;
    font-family: var(--font-code);
    font-size: 0.82rem;
    line-height: 1.65;
    overflow-x: auto;
    color: #C9D1D9;
}

.code-body .kwd  { color: #FF7B72; }
.code-body .cls  { color: #FFA657; }
.code-body .func { color: #D2A8FF; }
.code-body .str  { color: #A5D6FF; }
.code-body .type { color: #79C0FF; }
.code-body .var  { color: #7EE787; }

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}

.about-card { padding: 2.25rem; }

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: rgba(94, 106, 210, 0.12);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.45rem;
    margin-bottom: 1.5rem;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.about-card:hover .card-icon {
    background: rgba(94, 106, 210, 0.22);
    transform: scale(1.08);
}

.about-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.about-card p { color: var(--text-muted); font-size: 0.93rem; line-height: 1.65; }

/* ==========================================================================
   SERVICES SECTION
   ========================================================================== */

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 2.5rem;
    position: relative;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-highlight);
    box-shadow: var(--shadow-glow);
}

.service-card.highlighted {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(94,106,210,0.08) 0%, var(--bg-card) 100%);
}

.service-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--primary);
    color: #FFF;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
}

.service-icon { font-size: 2rem; color: var(--primary); margin-bottom: 1.25rem; }
.service-card h3 { font-size: 1.35rem; font-weight: 700; margin-bottom: 0.85rem; }
.service-card p  { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 1.5rem; }

.service-list li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.service-list i { color: var(--success); font-size: 0.8rem; }

/* ==========================================================================
   PROJECTS SECTION
   ========================================================================== */

.featured-project {
    padding: 2.5rem;
    margin-bottom: 4rem;
    position: relative;
    overflow: hidden;
}

.project-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--accent);
    font-weight: 700;
    font-size: 0.82rem;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
}

.featured-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2.5rem;
    align-items: center;
}

.featured-info h3 {
    font-size: 1.85rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.project-summary {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 1rem;
    line-height: 1.7;
}

.tech-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }

.tag {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: border-color var(--transition-fast), color var(--transition-fast);
}

.tag:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.featured-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.status-pill {
    font-size: 0.82rem;
    color: var(--success);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 600;
}

/* Preview Box */
.preview-card {
    background: #080D16;
    border: 1px solid rgba(255,255,255,0.09);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    color: #FFFFFF;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    font-weight: 700;
    font-size: 0.88rem;
}

.live-dot {
    background: var(--danger);
    color: #FFF;
    font-size: 0.62rem;
    padding: 0.1rem 0.5rem;
    border-radius: var(--radius-full);
    font-weight: 800;
    letter-spacing: 0.5px;
}

.preview-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.metric-box {
    background: rgba(255,255,255,0.04);
    padding: 0.85rem;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.m-title { font-size: 0.72rem; color: #94A3B8; }
.m-val   { font-size: 1.05rem; font-weight: 700; color: var(--success); }
.m-val.warning { color: var(--accent); }

.preview-chart-sim {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    height: 78px;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.07);
}

.bar {
    flex: 1;
    background: linear-gradient(180deg, var(--primary) 0%, rgba(94,106,210,0.3) 100%);
    border-radius: 4px 4px 0 0;
    animation: barGrow 3.2s var(--easing) infinite alternate;
}

.bar-1 { height: 40%; animation-delay: 0.0s; }
.bar-2 { height: 75%; animation-delay: 0.2s; }
.bar-3 { height: 55%; animation-delay: 0.4s; }
.bar-4 { height: 90%; animation-delay: 0.1s; }
.bar-5 { height: 65%; animation-delay: 0.3s; }

@keyframes barGrow {
    from { transform: scaleY(0.82); }
    to   { transform: scaleY(1.0); }
}

/* NDA Cards */
.nda-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-main);
}

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

.nda-card {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.nda-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.nda-category {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nda-badge {
    font-size: 0.72rem;
    color: var(--text-dim);
    background: rgba(255,255,255,0.04);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
}

.nda-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.75rem; }
.nda-card p  { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 1.5rem; line-height: 1.65; }

.nda-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.nda-footer .role { font-size: 0.78rem; font-weight: 700; color: var(--text-main); }
.nda-footer .tech { font-size: 0.72rem; color: var(--text-dim); }

.nda-actions {
    display: flex;
    gap: 0.6rem;
    margin-top: 0.8rem;
    flex-wrap: wrap;
}

/* ==========================================================================
   TECH STACK SECTION
   ========================================================================== */

.tech-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.5rem;
}

.tech-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem 1rem;
    text-align: center;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.tech-card:hover {
    transform: translateY(-6px) scale(1.03);
    border-color: var(--border-highlight);
    box-shadow: var(--shadow-glow);
}

.tech-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 2.5rem;
}

.tech-icon-img img {
    width: 2.5rem;
    height: 2.5rem;
    object-fit: contain;
}

.color-php    { color: #777BB4; }
.color-laravel{ color: #FF2D20; }
.color-mysql  { color: #00758F; }
.color-js     { color: #F7DF1E; }
.color-css    { color: #38BDF8; }
.color-git    { color: #F05032; }

.tech-card h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.tech-card p {
    font-size: 0.72rem;
    color: var(--text-muted);
    line-height: 1.45;
}

/* ==========================================================================
   INTERACTIVE DEMO WIDGET
   ========================================================================== */

.demo-widget { padding: 0; overflow: hidden; }

.demo-header {
    background: rgba(0, 0, 0, 0.22);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.demo-tabs { display: flex; gap: 0.4rem; }

.demo-tab {
    background: transparent;
    border: none;
    padding: 0.55rem 1.15rem;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.demo-tab:hover {
    color: var(--text-main);
    background: rgba(255,255,255,0.05);
}

.demo-tab.active {
    background: var(--primary);
    color: #FFF;
    box-shadow: 0 2px 10px var(--primary-glow);
}

.demo-status {
    font-size: 0.82rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator {
    width: 7px;
    height: 7px;
    background: var(--success);
    border-radius: 50%;
    animation: pulseGreen 2.2s ease-in-out infinite;
}

.demo-content { padding: 2rem; }
.tab-pane        { display: none; }
.tab-pane.active { display: block; }

.tab-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

/* Table */
.table-responsive { overflow-x: auto; }

.demo-table { width: 100%; border-collapse: collapse; text-align: left; }

.demo-table th {
    padding: 0.85rem 1rem;
    background: rgba(255,255,255,0.03);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.demo-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.88rem;
}

.status-badge {
    padding: 0.22rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 700;
}

.status-badge.in-stock  { background: rgba(34,197,94,0.14); color: var(--success); }
.status-badge.low-stock { background: rgba(245,158,11,0.14); color: var(--accent); }
.status-badge.out-stock { background: rgba(239,68,68,0.14);  color: var(--danger); }

/* POS */
.pos-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 2rem;
}

.product-cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.pos-item-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-item-card:hover {
    border-color: var(--primary);
    background: rgba(94,106,210,0.06);
    transform: translateY(-2px);
}

.pos-item-title { font-weight: 700; font-size: 0.93rem; margin-bottom: 0.25rem; }
.pos-item-price { color: var(--primary); font-weight: 800; font-size: 0.88rem; }
.pos-item-stock { font-size: 0.72rem; color: var(--text-dim); }

.pos-cart {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.cart-items {
    min-height: 180px;
    max-height: 250px;
    overflow-y: auto;
    margin: 1rem 0;
}

.empty-cart {
    font-size: 0.83rem;
    color: var(--text-dim);
    text-align: center;
    margin-top: 3rem;
}

.cart-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.83rem;
}

.cart-summary {
    border-top: 2px dashed var(--border-color);
    padding-top: 1rem;
}

.summary-line {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.88rem;
}

.summary-line.total {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-main);
    margin-top: 0.5rem;
    margin-bottom: 1.25rem;
}

/* Log Console */
.log-console {
    background: #040810;
    border: 1px solid rgba(255,255,255,0.09);
    border-radius: var(--radius-sm);
    overflow: hidden;
    font-family: var(--font-code);
}

.console-header {
    background: #0A1020;
    padding: 0.6rem 1rem;
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-dim);
}

.btn-text {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.78rem;
    font-family: var(--font-code);
}

.btn-text:hover { color: var(--danger); }

.console-body {
    padding: 1rem;
    height: 250px;
    overflow-y: auto;
    font-size: 0.78rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.log-entry  { display: flex; gap: 0.75rem; }
.log-time   { color: var(--text-dim); }
.log-info   { color: #38BDF8; }
.log-success{ color: var(--success); }

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */

.contact-box  { padding: 3.5rem; }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
}

.contact-links {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.contact-item:hover {
    background: rgba(255,255,255,0.06);
    border-color: var(--border-highlight);
    transform: translateX(6px);
    box-shadow: var(--shadow-glow);
}

.c-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: #FFF;
    flex-shrink: 0;
}

.c-icon.wa      { background: #25D366; }
.c-icon.mail    { background: var(--primary); }
.c-icon.linkedin{ background: #0A66C2; }

.c-detail { display: flex; flex-direction: column; }
.c-label  { font-size: 0.72rem; color: var(--text-muted); }
.c-val    { font-weight: 700; font-size: 0.93rem; }

/* Contact Form */
.contact-form-wrapper {
    background: rgba(0,0,0,0.15);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.contact-form-wrapper h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.form-group { margin-bottom: 1.25rem; }

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(0,0,0,0.22);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.modal-overlay.open { display: flex; }

.modal-card  { width: 100%; max-width: 500px; padding: 2rem; }

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

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.modal-close:hover { color: var(--danger); transform: rotate(90deg); }

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 0;
    font-size: 0.85rem;
    color: var(--text-muted);
    background: var(--bg-alt);
}

/* ── Footer Top (4-col grid) ───────────────────────────────────────────── */
.footer-top {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1.4fr;
    gap: 3rem;
    padding-bottom: 3rem;
}

/* Brand column */
.footer-brand { display: flex; flex-direction: column; gap: 1rem; }
.footer-logo  { margin-bottom: 0.25rem; }

.footer-tagline {
    font-size: 0.83rem;
    color: var(--text-muted);
    line-height: 1.65;
    max-width: 28ch;
}

/* Social icons row */
.footer-socials {
    display: flex;
    gap: 0.6rem;
    margin-top: 0.25rem;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: background var(--transition-fast), color var(--transition-fast),
                border-color var(--transition-fast), transform var(--transition-fast);
}

.social-icon:hover               { transform: translateY(-3px); }
.social-icon.wa:hover            { background: rgba(34,197,94,0.15);   color: #22C55E; border-color: rgba(34,197,94,0.35); }
.social-icon.mail:hover          { background: rgba(94,106,210,0.15);  color: var(--primary); border-color: var(--border-highlight); }
.social-icon.linkedin:hover      { background: rgba(10,102,194,0.15);  color: #0A66C2; border-color: rgba(10,102,194,0.35); }
.social-icon.github:hover        { background: rgba(248,250,252,0.10); color: var(--text-main); border-color: rgba(248,250,252,0.2); }

/* Footer columns */
.footer-col { display: flex; flex-direction: column; gap: 0.75rem; }

.footer-col-title {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-main);
    margin-bottom: 0.25rem;
}

.footer-nav {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-nav a {
    color: var(--text-muted);
    font-size: 0.84rem;
    transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-nav a:hover {
    color: var(--primary);
    padding-left: 4px;
}

/* CTA column */
.footer-cta-col { gap: 0.85rem; }

.footer-cta-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-cta-btn {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

/* ── Divider ────────────────────────────────────────────────────────────── */
.footer-divider {
    height: 1px;
    background: var(--border-color);
}

/* ── Footer Bottom ──────────────────────────────────────────────────────── */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.25rem 0 1.5rem;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.back-to-top {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.back-to-top:hover { color: var(--primary); }
.back-to-top i     { font-size: 0.75rem; }

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

@media (max-width: 992px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-visual { display: none; }

    .about-grid,
    .services-grid,
    .nda-projects-grid { grid-template-columns: 1fr 1fr; }

    .tech-grid { grid-template-columns: repeat(3, 1fr); }

    .featured-grid,
    .pos-grid,
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-main);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2.5rem;
        transition: left var(--transition-normal);
    }

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

    .mobile-menu-btn { display: block; }
    .nav-cta         { display: none; }

    .section-title  { font-size: 1.85rem; }
    .hero-title     { font-size: 2.2rem; }

    .about-grid,
    .services-grid,
    .nda-projects-grid { grid-template-columns: 1fr; }

    .tech-grid { grid-template-columns: repeat(2, 1fr); }

    .contact-box { padding: 1.5rem; }

    .product-cards-grid { grid-template-columns: 1fr; }

    .hero-stats { gap: 1.25rem; }

    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; justify-content: center; }

    /* Footer responsive — 2 columns on tablet */
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .footer-brand { grid-column: 1 / -1; }
    .footer-tagline { max-width: none; }
}

@media (max-width: 480px) {
    .section { padding: 4.5rem 0; }
    .tech-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-stats { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .stat-divider { display: none; }

    /* Footer responsive — single column on mobile */
    .footer-top {
        grid-template-columns: 1fr;
        gap: 1.75rem;
    }

    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
}