/* ===== CSS Custom Properties ===== */
:root {
    --navy-900: #0a1628;
    --navy-800: #0f2140;
    --navy-700: #152d56;
    --gold-500: #d4a017;
    --gold-400: #e6b422;
    --gold-300: #f0c94d;
}

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

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--navy-900);
    color: white;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Hero Gradient ===== */
.hero-gradient {
    background: 
        radial-gradient(ellipse 80% 60% at 50% 40%, rgba(212, 160, 23, 0.12) 0%, transparent 70%),
        radial-gradient(ellipse 60% 50% at 20% 60%, rgba(21, 45, 86, 0.8) 0%, transparent 60%),
        radial-gradient(ellipse 50% 40% at 80% 30%, rgba(212, 160, 23, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 50%, var(--navy-900) 100%);
}

/* ===== Geometric Background Shapes ===== */
.geo-circle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.geo-circle--1 {
    width: 600px;
    height: 600px;
    top: -200px;
    right: -150px;
    background: radial-gradient(circle, rgba(212, 160, 23, 0.06) 0%, transparent 70%);
    animation: float-slow 20s ease-in-out infinite;
}

.geo-circle--2 {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: -100px;
    background: radial-gradient(circle, rgba(21, 45, 86, 0.5) 0%, transparent 70%);
    animation: float-slow 15s ease-in-out infinite reverse;
}

.geo-square {
    position: absolute;
    pointer-events: none;
    border: 1px solid rgba(212, 160, 23, 0.1);
    transform: rotate(45deg);
}

.geo-square--1 {
    width: 200px;
    height: 200px;
    top: 30%;
    left: 5%;
    animation: rotate-slow 30s linear infinite;
}

.geo-triangle {
    position: absolute;
    width: 0;
    height: 0;
    pointer-events: none;
    border-left: 60px solid transparent;
    border-right: 60px solid transparent;
    border-bottom: 104px solid rgba(212, 160, 23, 0.04);
}

.geo-triangle--1 {
    bottom: 20%;
    right: 8%;
    animation: float-slow 12s ease-in-out infinite;
}

.geo-dots {
    position: absolute;
    pointer-events: none;
    background-image: radial-gradient(circle, rgba(212, 160, 23, 0.15) 1px, transparent 1px);
    background-size: 24px 24px;
}

.geo-dots--1 {
    width: 200px;
    height: 200px;
    top: 15%;
    right: 10%;
}

/* ===== Animations ===== */
@keyframes float-slow {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-30px); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(12deg); }
    50% { transform: translateY(-15px) rotate(12deg); }
}

@keyframes float-delayed {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes rotate-slow {
    from { transform: rotate(45deg); }
    to { transform: rotate(405deg); }
}

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

.animate-float-delayed {
    animation: float-delayed 8s ease-in-out infinite;
}

/* ===== Navbar ===== */
#navbar {
    background: transparent;
    transition: background 0.4s ease, backdrop-filter 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
    background: rgba(10, 22, 40, 0.9);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold-400);
    transition: width 0.3s ease;
}

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

/* ===== Mobile Menu ===== */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu:not(.open) {
    opacity: 0;
    pointer-events: none;
}

.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* Mobile hamburger animation */
#mobile-toggle.active .line-1 {
    transform: rotate(45deg) translate(5px, 5px);
}

#mobile-toggle.active .line-2 {
    opacity: 0;
}

#mobile-toggle.active .line-3 {
    transform: rotate(-45deg) translate(5px, -5px);
    width: 1.5rem;
}

/* ===== Service Cards ===== */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gold-500), var(--gold-300));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

/* ===== Process Steps ===== */
.process-step {
    position: relative;
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ===== Selection ===== */
::selection {
    background: rgba(212, 160, 23, 0.3);
    color: white;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--navy-900);
}

::-webkit-scrollbar-thumb {
    background: var(--navy-700);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gold-500);
}