/* ========================================
   ADVANCED EFFECTS - Professional Portfolio
======================================== */

/* ========================================
   1. PAGE LOADING ANIMATION
======================================== */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loader-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Body hidden during load */
body.loading {
    overflow: hidden;
}

body.loaded .page-loader {
    opacity: 0;
    visibility: hidden;
}

/* ========================================
   2. PAGE TRANSITIONS - Disabled
======================================== */
.page-transition {
    display: none;
}

/* ========================================
   3. ANIMATED BACKGROUND
======================================== */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: var(--bg-primary);
    overflow: hidden;
}

/* Liquid Gradient Orbs */
.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.35;
    animation: floatLiquid 25s infinite ease-in-out;
    mix-blend-mode: screen;
}

.bg-orb-1 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, #6366f1 0%, transparent 70%);
    top: -250px;
    right: -250px;
    animation-delay: 0s;
}

.bg-orb-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #a855f7 0%, transparent 70%);
    bottom: -200px;
    left: -200px;
    animation-delay: -6s;
}

.bg-orb-3 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #06b6d4 0%, transparent 70%);
    top: 35%;
    left: 35%;
    animation-delay: -12s;
}

.bg-orb-4 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #ec4899 0%, transparent 70%);
    bottom: 25%;
    right: 15%;
    animation-delay: -18s;
    opacity: 0.25;
}

@keyframes floatLiquid {

    0%,
    100% {
        transform: translate(0, 0) scale(1) rotate(0deg);
    }

    25% {
        transform: translate(60px, -60px) scale(1.15) rotate(90deg);
    }

    50% {
        transform: translate(0, 70px) scale(0.85) rotate(180deg);
    }

    75% {
        transform: translate(-60px, 0) scale(1.1) rotate(270deg);
    }
}

/* Floating Particles */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.6);
    animation: floatParticle 15s infinite ease-in-out;
    opacity: 0;
}

.particle:nth-child(odd) {
    background: rgba(168, 85, 247, 0.5);
}

.particle:nth-child(3n) {
    background: rgba(236, 72, 153, 0.4);
    width: 3px;
    height: 3px;
}

.particle:nth-child(5n) {
    background: rgba(6, 182, 212, 0.5);
    width: 5px;
    height: 5px;
}

@keyframes floatParticle {
    0% {
        opacity: 0;
        transform: translateY(100vh) scale(0);
    }

    10% {
        opacity: 1;
    }

    90% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        transform: translateY(-100vh) scale(1);
    }
}

/* ========================================
   4. LIQUID GLASS EFFECT - Clean iOS Style
======================================== */

/* Base Liquid Glass - Subtle & Professional */
.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme */
[data-theme="light"] .glass {
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

/* Subtle Light Refraction - Top Highlight Only */
.glass::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
            transparent 0%,
            rgba(255, 255, 255, 0.3) 50%,
            transparent 100%);
    pointer-events: none;
}

/* Hover - Subtle Enhancement */
.glass:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(99, 102, 241, 0.2);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .glass:hover {
    background: rgba(255, 255, 255, 0.7);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

/* Glass Menu - Transparent */
.glass-menu {
    background: transparent;
}

/* Premium Card Glass */
.glass-card {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(24px) saturate(160%);
    -webkit-backdrop-filter: blur(24px) saturate(160%);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* Shimmer - Subtle */
.glass-shimmer {
    position: relative;
    overflow: hidden;
}

.glass-shimmer::before {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: linear-gradient(45deg,
            transparent 40%,
            rgba(255, 255, 255, 0.05) 50%,
            transparent 60%);
    transform: rotate(45deg);
    animation: liquidShimmer 4s ease-in-out infinite;
    pointer-events: none;
}

@keyframes liquidShimmer {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }

    50% {
        transform: translateX(0%) translateY(0%) rotate(45deg);
    }

    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

/* Glow Border - Minimal */
.glow-border {
    position: relative;
}

.glow-border::after {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg,
            rgba(99, 102, 241, 0.3),
            rgba(168, 85, 247, 0.3));
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    filter: blur(8px);
    transition: opacity 0.3s ease;
}

.glow-border:hover::after {
    opacity: 0.4;
}

/* Parallax Layer */
.parallax-layer {
    will-change: transform;
    transition: transform 0.1s ease-out;
}

/* ========================================
   5. ENHANCED HOVER EFFECTS
======================================== */

/* Card Hover - Lift + Gradient Glow */
.link-card,
.skill-card,
.project-card,
.contact-card {
    position: relative;
    transition:
        transform var(--transition-base),
        box-shadow var(--transition-base),
        border-color var(--transition-base);
}

.link-card:hover,
.skill-card:hover,
.project-card:hover,
.contact-card:hover {
    transform: translateY(-6px);
    box-shadow:
        0 20px 40px rgba(99, 102, 241, 0.15),
        0 0 0 1px rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.3);
}

/* Shine effect on card hover */
.link-card,
.skill-card,
.project-card {
    overflow: hidden;
}

.link-card::before,
.skill-card::before,
.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg,
            transparent 30%,
            rgba(255, 255, 255, 0.05) 50%,
            transparent 70%);
    transition: left 0.6s ease;
    pointer-events: none;
    z-index: 1;
    border-radius: inherit;
}

.link-card:hover::before,
.skill-card:hover::before,
.project-card:hover::before {
    left: 100%;
}

/* Button Hover - Scale + Shadow */
.btn {
    position: relative;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.btn:hover::after {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.25);
}

.btn:active {
    transform: translateY(0);
}

/* Social Link Hover */
.social-link {
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.social-link:hover {
    transform: translateY(-3px) scale(1.05);
}

/* Image Hover - Subtle Zoom */
.avatar-container {
    overflow: hidden;
}

.avatar-container img {
    transition: transform 0.5s ease;
}

.avatar-container:hover img {
    transform: scale(1.05);
}

/* ========================================
   6. MICROINTERACTIONS
======================================== */

/* Link Arrow Animation */
.link-arrow {
    display: inline-block;
    transition: transform 0.2s ease, color 0.2s ease;
}

.link-card:hover .link-arrow {
    transform: translateX(4px);
    color: var(--accent);
}

/* Nav Link - No Underline */
.nav-link {
    position: relative;
}

/* Badge Pulse */
.badge-dot {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
    }

    50% {
        opacity: 0.8;
        box-shadow: 0 0 0 8px rgba(34, 197, 94, 0);
    }
}

/* Click Ripple Effect */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ========================================
   7. ANIMATED MENU
======================================== */
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu Slide */
@media (max-width: 768px) {
    .nav-menu {
        transform: translateY(-10px);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
}

/* ========================================
   8. TOOLTIPS
======================================== */
[data-tooltip] {
    position: relative;
    cursor: pointer;
}

[data-tooltip]::before,
[data-tooltip]::after {
    position: absolute;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
    z-index: 1000;
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    padding: 6px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 0.75rem;
    white-space: nowrap;
    margin-bottom: 8px;
}

[data-tooltip]::after {
    content: '';
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--border);
    margin-bottom: -4px;
}

[data-tooltip]:hover::before,
[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

[data-tooltip]:hover::before {
    transform: translateX(-50%) translateY(0);
}

/* ========================================
   9. SCROLL ANIMATIONS
======================================== */
[data-animate] {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: opacity, transform;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Stagger children */
[data-animate-stagger]>* {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

[data-animate-stagger].visible>*:nth-child(1) {
    transition-delay: 0.1s;
}

[data-animate-stagger].visible>*:nth-child(2) {
    transition-delay: 0.2s;
}

[data-animate-stagger].visible>*:nth-child(3) {
    transition-delay: 0.3s;
}

[data-animate-stagger].visible>*:nth-child(4) {
    transition-delay: 0.4s;
}

[data-animate-stagger].visible>* {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   10. SCROLL PROGRESS
======================================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--accent);
    z-index: 10001;
    width: 0;
    transition: width 0.1s linear;
}

/* ========================================
   11. CURSOR EFFECTS
======================================== */
.cursor-glow {
    position: fixed;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 9998;
    transition: opacity 0.3s ease;
}

.cursor-dot {
    position: fixed;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 9999;
    transition: transform 0.15s ease, width 0.15s ease, height 0.15s ease;
}

.cursor-dot.hover {
    width: 20px;
    height: 20px;
    background: rgba(59, 130, 246, 0.3);
}

@media (max-width: 768px) {

    .cursor-glow,
    .cursor-dot {
        display: none;
    }
}

/* ========================================
   12. TEXT & GRADIENT EFFECTS
======================================== */
.gradient-text {
    color: #6366f1;
    /* Fallback */
    background: linear-gradient(135deg, #6366f1, #a855f7, #ec4899, #6366f1);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
    display: inline-block;
}

.gradient-text-animated {
    color: #6366f1;
    /* Fallback */
    background: linear-gradient(135deg, #6366f1, #a855f7, #ec4899, #06b6d4, #6366f1);
    background-size: 400% 400%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 6s ease infinite;
    display: inline-block;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* ========================================
   13. SMOOTH SCROLLING
======================================== */
html {
    scroll-behavior: smooth;
}

/* ========================================
   14. PAGE LOAD ANIMATION
======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    animation: fadeInUp 0.5s ease 0.1s forwards;
    opacity: 0;
}

.hero-title {
    animation: fadeInUp 0.5s ease 0.2s forwards;
    opacity: 0;
}

.hero-roles {
    animation: fadeInUp 0.5s ease 0.3s forwards;
    opacity: 0;
}

.hero-description {
    animation: fadeInUp 0.5s ease 0.4s forwards;
    opacity: 0;
}

.hero-actions {
    animation: fadeInUp 0.5s ease 0.5s forwards;
    opacity: 0;
}

.hero-social {
    animation: fadeInUp 0.5s ease 0.6s forwards;
    opacity: 0;
}

.hero-visual {
    animation: fadeInUp 0.6s ease 0.3s forwards;
    opacity: 0;
}

/* ========================================
   SCROLL REVEAL ANIMATIONS
======================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Staggered reveal for cards */
.scroll-reveal:nth-child(1) {
    transition-delay: 0ms;
}

.scroll-reveal:nth-child(2) {
    transition-delay: 50ms;
}

.scroll-reveal:nth-child(3) {
    transition-delay: 100ms;
}

.scroll-reveal:nth-child(4) {
    transition-delay: 150ms;
}

.scroll-reveal:nth-child(5) {
    transition-delay: 200ms;
}

.scroll-reveal:nth-child(6) {
    transition-delay: 250ms;
}

/* ========================================
   15. REDUCED MOTION
======================================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}