/* =====================================================
   AYAN Codex — Global Styles
   Dark futuristic enterprise theme
   ===================================================== */

/* --- CSS Custom Properties --- */
:root {
    --color-dark: #0B0F19;
    --color-dark-alt: #060a14;
    --color-surface: rgba(255, 255, 255, 0.04);
    --color-surface-hover: rgba(255, 255, 255, 0.08);
    --color-border: rgba(255, 255, 255, 0.10);
    --color-border-hover: rgba(255, 255, 255, 0.16);
    --color-cyan: #22d3ee;
    --color-cyan-dim: rgba(34, 211, 238, 0.15);
    --color-blue: #3b82f6;
    --color-purple: #a855f7;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

/* --- Base --- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-dark);
    color: #d1d5db;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    margin: 0;
    line-height: 1.6;
}

/* --- Glassmorphism Card --- */
.glass-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.glass-card:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-border-hover);
}

/* --- Navbar --- */
#site-header {
    background: rgba(11, 15, 25, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

#site-header.scrolled {
    background: rgba(11, 15, 25, 0.92);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.nav-link-item {
    color: #9ca3af;
    transition: color 0.25s;
    position: relative;
}

.nav-link-item:hover,
.nav-link-item:focus {
    color: var(--color-cyan);
}

.nav-link-item::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-cyan);
    transition: width 0.3s;
}

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

/* Mobile Menu */
.hamburger-line {
    display: block;
    width: 22px;
    height: 2px;
    background: #d1d5db;
    border-radius: 2px;
    transition: all 0.3s;
}

.hamburger-active .hamburger-line:nth-child(1) {
    transform: translateY(5.5px) rotate(45deg);
}

.hamburger-active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger-active .hamburger-line:nth-child(3) {
    transform: translateY(-5.5px) rotate(-45deg);
}

.mobile-menu-panel {
    background: rgba(11, 15, 25, 0.97);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.mobile-nav-link {
    color: #d1d5db;
    transition: color 0.25s;
}

.mobile-nav-link:hover {
    color: var(--color-cyan);
}

/* --- Buttons --- */
.btn-primary {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #0B0F19;
    background: linear-gradient(135deg, var(--color-cyan), var(--color-blue));
    border-radius: 0.75rem;
    transition: all 0.3s;
    text-decoration: none;
    border: none;
    cursor: pointer;
    letter-spacing: 0.01em;
}

.btn-primary:hover {
    box-shadow: 0 0 24px rgba(34, 211, 238, 0.3), 0 0 48px rgba(34, 211, 238, 0.15);
    transform: translateY(-1px);
    color: #0B0F19;
}

.btn-primary:focus-visible {
    outline: 2px solid var(--color-cyan);
    outline-offset: 2px;
}

.btn-primary-sm {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1.25rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #0B0F19;
    background: linear-gradient(135deg, var(--color-cyan), var(--color-blue));
    border-radius: 0.5rem;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primary-sm:hover {
    box-shadow: 0 0 16px rgba(34, 211, 238, 0.25);
    color: #0B0F19;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-cyan);
    background: transparent;
    border: 1px solid rgba(34, 211, 238, 0.4);
    border-radius: 0.75rem;
    transition: all 0.3s;
    text-decoration: none;
    cursor: pointer;
}

.btn-secondary:hover {
    background: rgba(34, 211, 238, 0.08);
    border-color: var(--color-cyan);
    box-shadow: 0 0 16px rgba(34, 211, 238, 0.15);
    color: var(--color-cyan);
}

.btn-secondary:focus-visible {
    outline: 2px solid var(--color-cyan);
    outline-offset: 2px;
}

/* --- Form Inputs --- */
.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: 0.75rem;
    color: #e5e7eb;
    font-size: 0.875rem;
    font-family: var(--font-sans);
    transition: all 0.25s;
    outline: none;
}

.form-input::placeholder {
    color: #6b7280;
}

.form-input:focus {
    border-color: var(--color-cyan);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.1);
    background: rgba(255, 255, 255, 0.06);
}

/* --- Hero Glow Effects --- */
.hero-glow {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 1;
}

.hero-glow-1 {
    width: 600px;
    height: 600px;
    right: -200px;
    top: 10%;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.08) 0%, transparent 70%);
    animation: glow-pulse 6s ease-in-out infinite;
}

.hero-glow-2 {
    width: 400px;
    height: 400px;
    left: 10%;
    bottom: 10%;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.06) 0%, transparent 70%);
    animation: glow-pulse 8s ease-in-out infinite reverse;
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

/* --- Service Card Hover Glow --- */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(34, 211, 238, 0.04) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
}

.service-card:hover::before {
    opacity: 1;
}

/* --- Social Icon Links --- */
.social-icon-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #9ca3af;
    transition: all 0.25s;
}

.social-icon-link:hover {
    color: var(--color-cyan);
    border-color: rgba(34, 211, 238, 0.3);
    background: rgba(34, 211, 238, 0.08);
}

/* --- Scroll Animations --- */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

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

/* --- Hero Animations (CSS-only) --- */
.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-fade-in-up-delay {
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
    opacity: 0;
}

.animate-fade-in-up-delay-2 {
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
    opacity: 0;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Accessibility --- */
*:focus-visible {
    outline: 2px solid var(--color-cyan);
    outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* --- Selection --- */
::selection {
    background: rgba(34, 211, 238, 0.25);
    color: #fff;
}

/* --- Scrollbar (Webkit) --- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-dark);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}