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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Smooth scroll offset for fixed navbar */
section[id] {
    scroll-margin-top: 80px;
}

a {
    text-decoration: none;
}

/* ========== GEOMETRIC BACKGROUND SHAPES ========== */
.geo-shape {
    position: fixed;
    pointer-events: none;
    z-index: 0;
}

.geo-circle-1 {
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 74, 0.06) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation: float-slow 20s ease-in-out infinite;
}

.geo-circle-2 {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 74, 0.04) 0%, transparent 70%);
    bottom: 10%;
    left: -100px;
    animation: float-slow 25s ease-in-out infinite reverse;
}

.geo-triangle {
    width: 0;
    height: 0;
    border-left: 80px solid transparent;
    border-right: 80px solid transparent;
    border-bottom: 140px solid rgba(255, 107, 74, 0.05);
    top: 40%;
    right: 5%;
    transform: rotate(15deg);
    animation: float-slow 18s ease-in-out infinite;
}

.geo-square {
    width: 100px;
    height: 100px;
    background: rgba(255, 107, 74, 0.04);
    border: 2px solid rgba(255, 107, 74, 0.08);
    top: 60%;
    left: 8%;
    transform: rotate(45deg);
    animation: float-slow 22s ease-in-out infinite reverse;
}

@keyframes float-slow {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(3deg); }
}

/* ========== SCROLL REVEAL ANIMATIONS ========== */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.reveal[data-reveal-delay="1"] { transition-delay: 0.1s; }
.reveal[data-reveal-delay="2"] { transition-delay: 0.2s; }
.reveal[data-reveal-delay="3"] { transition-delay: 0.3s; }
.reveal[data-reveal-delay="4"] { transition-delay: 0.4s; }

/* Progressive enhancement: if JS is disabled, all reveal elements stay visible */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== MOBILE MENU ========== */
.mobile-link {
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

/* ========== NAVBAR SCROLL STATE ========== */
#navbar.scrolled {
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

/* ========== FORM STYLES ========== */
input:focus, textarea:focus {
    outline: none;
}

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

::-webkit-scrollbar-track {
    background: #1a1a1a;
}

::-webkit-scrollbar-thumb {
    background: #4a4a4a;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #FF6B4A;
}

/* ========== SELECTION ========== */
::selection {
    background: rgba(255, 107, 74, 0.3);
    color: #fff;
}

/* ========== RESPONSIVE ADJUSTMENTS ========== */
@media (max-width: 640px) {
    .geo-circle-1 {
        width: 300px;
        height: 300px;
    }
    
    .geo-circle-2 {
        width: 200px;
        height: 200px;
    }
    
    .geo-triangle {
        border-left: 40px solid transparent;
        border-right: 40px solid transparent;
        border-bottom: 70px solid rgba(255, 107, 74, 0.05);
    }
    
    .geo-square {
        width: 50px;
        height: 50px;
    }
}