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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', sans-serif;
    color: #1e293b;
    background-color: #ffffff;
    overflow-x: hidden;
}

/* ===== Geometric Hero Shapes ===== */
.geo-shape {
    position: absolute;
    opacity: 0.12;
    pointer-events: none;
}

.shape-circle-1 {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: #fbbf24;
    top: -100px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.shape-circle-2 {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: #f472b6;
    bottom: 10%;
    left: 5%;
    animation: float 10s ease-in-out infinite reverse;
}

.shape-circle-3 {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: #34d399;
    top: 30%;
    left: -50px;
    animation: float 6s ease-in-out infinite;
}

.shape-square-1 {
    width: 120px;
    height: 120px;
    background: #a78bfa;
    top: 20%;
    right: 10%;
    border-radius: 24px;
    transform: rotate(45deg);
    animation: spin-slow 12s linear infinite;
}

.shape-square-2 {
    width: 80px;
    height: 80px;
    background: #fb923c;
    bottom: 20%;
    right: 20%;
    border-radius: 16px;
    transform: rotate(20deg);
    animation: float 7s ease-in-out infinite;
}

.shape-triangle-1 {
    width: 0;
    height: 0;
    border-left: 60px solid transparent;
    border-right: 60px solid transparent;
    border-bottom: 104px solid #38bdf8;
    top: 60%;
    right: 5%;
    opacity: 0.1;
    animation: spin-slow 15s linear infinite reverse;
}

.shape-dots {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-image: radial-gradient(circle, rgba(255,255,255,0.15) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.5;
}

/* ===== Animations ===== */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes spin-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes scroll-dot {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

.scroll-dot {
    animation: scroll-dot 1.2s ease-in-out infinite;
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .geo-shape {
        animation: none;
    }
    .shape-square-1, .shape-triangle-1 {
        animation: none;
    }
    .scroll-dot {
        animation: none;
    }
    .reveal {
        transition: none;
    }
}

/* ===== Navbar ===== */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2dd4bf;
    transition: width 0.3s ease;
}

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

/* ===== Mobile Menu ===== */
#mobile-menu {
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-link {
    display: block;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-link:last-child {
    border-bottom: none;
}

/* ===== Button Hover Effects ===== */
a, button {
    -webkit-tap-highlight-color: transparent;
}

/* ===== Selection ===== */
::selection {
    background: #2dd4bf;
    color: #0f172a;
}

/* ===== Form Focus ===== */
input:focus, select:focus, textarea:focus {
    outline: none;
}

/* ===== Smooth Scroll Offset ===== */
section[id] {
    scroll-margin-top: 80px;
}

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

::-webkit-scrollbar-track {
    background: #0f172a;
}

::-webkit-scrollbar-thumb {
    background: #14b8a6;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2dd4bf;
}