* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Inter', sans-serif;
    background: #0a0a0f;
    color: #FFFFFF;
    overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { 
    background: #0a0a0f;
    border-left: 1px solid rgba(255, 255, 255, 0.05);
}
::-webkit-scrollbar-thumb { 
    background: linear-gradient(180deg, #3b82f6, #8b5cf6);
    border-radius: 10px;
    border: 2px solid #0a0a0f;
}
::-webkit-scrollbar-thumb:hover { 
    background: linear-gradient(180deg, #60a5fa, #a78bfa);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: #6366f1 #0a0a0f;
}

/* Noise texture */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,.03) 2px, rgba(255,255,255,.03) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255,255,255,.03) 2px, rgba(255,255,255,.03) 4px);
    opacity: 0.3;
    pointer-events: none;
    z-index: 9999;
}

/* Reveal animation */
.reveal {
    opacity: 0;
    transform: translateY(30px) scale(0.98);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    filter: blur(10px);
}
.reveal.active {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }
.delay-600 { transition-delay: 600ms; }

/* Gradient text */
.gradient-text {
    background: linear-gradient(135deg, #FFFFFF 0%, #c7d2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}


/* Glass panel */
.glass-panel {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

/* Hero glow */
.hero-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle at center, rgba(99,102,241,0.25) 0%, rgba(0,0,0,0) 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

/* Marquee */
@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.marquee-track {
    animation: marquee 30s linear infinite;
}
.marquee-track:hover {
    animation-play-state: paused;
}

/* Floating animation */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}
.float { animation: float 6s ease-in-out infinite; }

/* Ping */
@keyframes ping {
    75%, 100% { transform: scale(2); opacity: 0; }
}

/* Rotate */
@keyframes spin-slow {
    to { transform: rotate(360deg); }
}
.spin-slow { animation: spin-slow 20s linear infinite; }

/* Gradient border card */
.gradient-border {
    position: relative;
    background: rgba(255,255,255,0.05);
    border-radius: 16px;
    overflow: hidden;
}
.gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(99,102,241,0.4), rgba(168,85,247,0.2), rgba(255,255,255,0.08));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* Skill bar animation */
.skill-fill {
    width: 0;
    transition: width 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}


/* Cursor glow */
.cursor-glow {
    position: fixed;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(99,102,241,0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
}

/* Smooth scroll */
html { scroll-behavior: smooth; }

/* Nav active */
.nav-link {
    position: relative;
    transition: color 150ms;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: #818cf8;
    transition: all 0.3s ease;
    transform: translateX(-50%);
    border-radius: 1px;
}
.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Card hover */
.hover-card {
    transition: all 0.3s ease;
}
.hover-card:hover {
    background: rgba(255,255,255,0.08);
    transform: translateY(-4px);
}

/* Timeline */
.timeline-line {
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, rgba(129,140,248,0.6), rgba(129,140,248,0.1));
}
.timeline-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #818cf8;
    border: 2px solid #0a0a0f;
    box-shadow: 0 0 12px rgba(129,140,248,0.6);
    position: absolute;
    left: 15px;
    top: 6px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    backdrop-filter: blur(10px);
    padding: 12px 24px;
    border-radius: 12px;
    color: #10B981;
    font-size: 14px;
    font-weight: 500;
    z-index: 10000;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    gap: 8px;
}
.toast.show {
    transform: translateX(-50%) translateY(0);
}

/* Mobile nav */
.mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease;
    opacity: 0;
}
.mobile-menu.open {
    max-height: 400px;
    opacity: 1;
}

/* Typing cursor */
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}
.typing-cursor {
    display: inline-block;
    width: 3px;
    height: 1em;
    background: #818cf8;
    margin-left: 4px;
    animation: blink 1s step-end infinite;
    vertical-align: text-bottom;
}

/* Portfolio image overlay */
.portfolio-overlay {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}
.portfolio-card:hover .portfolio-img {
    transform: scale(1.05);
}


/* Logo animation */
.logo-icon {
    opacity: 0;
    transform: scale(0.8);
    animation: logoIconAppear 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
}

.logo-text {
    opacity: 0;
    transform: translateX(-10px);
    animation: logoTextSlide 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.5s forwards;
}

@keyframes logoIconAppear {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes logoTextSlide {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Back to top button visibility */
#backToTop.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* Content Protection */
* {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}

/* Allow selection only in input fields */
input, textarea {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* Prevent image dragging */
img {
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    pointer-events: none;
}

/* Re-enable pointer events for interactive elements */
a, button, input, textarea, select {
    pointer-events: auto;
}