/* ========================================
   Apple-inspired Glassmorphism Homepage
   Premium dark mode design with fluid gradients
   ======================================== */

/* CSS Custom Properties */
:root {
    /* Colors - Premium dark palette */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;

    /* Glass effects */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-hover: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    --glass-shadow: rgba(0, 0, 0, 0.3);

    /* Text colors */
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.55);
    --text-tertiary: rgba(255, 255, 255, 0.35);

    /* Gradient colors for animated background */
    --gradient-1: #4f46e5; /* Indigo */
    --gradient-2: #7c3aed; /* Violet */
    --gradient-3: #0ea5e9; /* Sky */
    --gradient-4: #06b6d4; /* Cyan */
    --gradient-5: #c026d3; /* Fuchsia */

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --container-max-width: 420px;
    --container-padding: 24px;
    --button-gap: 12px;

    /* Animation timings */
    --transition-fast: 150ms;
    --transition-normal: 250ms;
    --transition-slow: 400ms;
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* ========================================
   Animated Gradient Background
   ======================================== */

.gradient-bg {
    position: fixed;
    inset: 0;
    overflow: hidden;
    z-index: 0;
    background: var(--bg-primary);
}

.gradient-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    will-change: transform;
    transition: transform 0.3s ease-out;
}

/* Blob 1 - Large indigo, top left */
.blob-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--gradient-1) 0%, transparent 70%);
    top: -20%;
    left: -10%;
    animation: float-1 25s ease-in-out infinite;
}

/* Blob 2 - Medium violet, top right */
.blob-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--gradient-2) 0%, transparent 70%);
    top: -10%;
    right: -15%;
    animation: float-2 30s ease-in-out infinite;
}

/* Blob 3 - Large cyan, bottom right */
.blob-3 {
    width: 550px;
    height: 550px;
    background: radial-gradient(circle, var(--gradient-3) 0%, transparent 70%);
    bottom: -20%;
    right: -5%;
    animation: float-3 28s ease-in-out infinite;
}

/* Blob 4 - Medium teal, bottom left */
.blob-4 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, var(--gradient-4) 0%, transparent 70%);
    bottom: -15%;
    left: -10%;
    animation: float-4 22s ease-in-out infinite;
}

/* Blob 5 - Small fuchsia, center */
.blob-5 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--gradient-5) 0%, transparent 70%);
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.35;
    animation: float-5 20s ease-in-out infinite;
}

/* Blob animations - smooth, organic movement */
@keyframes float-1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(50px, 30px) scale(1.05); }
    50% { transform: translate(20px, 60px) scale(0.95); }
    75% { transform: translate(-30px, 40px) scale(1.02); }
}

@keyframes float-2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(-40px, 50px) scale(0.98); }
    50% { transform: translate(-60px, 20px) scale(1.04); }
    75% { transform: translate(-20px, -30px) scale(0.96); }
}

@keyframes float-3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(-50px, -40px) scale(1.03); }
    50% { transform: translate(-30px, -70px) scale(0.97); }
    75% { transform: translate(20px, -50px) scale(1.01); }
}

@keyframes float-4 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(60px, -30px) scale(0.96); }
    50% { transform: translate(40px, -60px) scale(1.05); }
    75% { transform: translate(10px, -40px) scale(0.98); }
}

@keyframes float-5 {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    33% { transform: translate(-45%, -55%) scale(1.08); }
    66% { transform: translate(-55%, -48%) scale(0.94); }
}

/* Noise overlay for texture */
.noise-overlay {
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    opacity: 0.015;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-repeat: repeat;
}

/* ========================================
   Main Container
   ======================================== */

.container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: var(--container-max-width);
    padding: var(--container-padding);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    min-height: 100dvh;
    justify-content: center;
}

/* ========================================
   Profile Section
   ======================================== */

.profile-section {
    text-align: center;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s var(--ease-out-expo) forwards;
    animation-delay: 0.1s;
}

.title {
    font-size: 2.75rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 1) 0%,
        rgba(255, 255, 255, 0.7) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.subtitle {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

/* ========================================
   Links Container
   ======================================== */

.links-container {
    display: flex;
    flex-direction: column;
    gap: var(--button-gap);
    width: 100%;
    margin-bottom: 40px;
}

/* ========================================
   Glassmorphic Link Buttons
   ======================================== */

.link-button {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
    cursor: pointer;

    /* Glassmorphism */
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);

    /* Smooth transitions */
    transition:
        background var(--transition-normal) ease,
        border-color var(--transition-normal) ease,
        transform var(--transition-normal) var(--ease-out-expo),
        box-shadow var(--transition-normal) ease;

    /* Entrance animation */
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s var(--ease-out-expo) forwards;
    animation-delay: calc(0.15s + var(--delay) * 0.06s);
}

/* Inner glow effect on buttons */
.link-button::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 1px;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.1) 0%,
        transparent 50%,
        transparent 100%
    );
    -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;
    opacity: 0.5;
    transition: opacity var(--transition-normal) ease;
}

/* Hover state */
.link-button:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-2px) scale(1.01);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset,
        0 20px 40px -10px rgba(79, 70, 229, 0.15);
}

.link-button:hover::before {
    opacity: 1;
}

/* Active state */
.link-button:active {
    transform: translateY(0) scale(0.99);
    transition-duration: 50ms;
}

/* Focus state for accessibility */
.link-button:focus-visible {
    outline: none;
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow:
        0 0 0 3px rgba(99, 102, 241, 0.2),
        0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Link icon */
.link-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    margin-right: 14px;
    color: var(--text-secondary);
    transition: color var(--transition-normal) ease;
}

.link-icon svg {
    width: 20px;
    height: 20px;
}

.link-button:hover .link-icon {
    color: var(--text-primary);
}

/* Link text */
.link-text {
    flex: 1;
    text-align: left;
}

/* Arrow icon */
.link-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    color: var(--text-tertiary);
    opacity: 0;
    transform: translateX(-8px);
    transition:
        opacity var(--transition-normal) ease,
        transform var(--transition-normal) var(--ease-out-expo),
        color var(--transition-normal) ease;
}

.link-arrow svg {
    width: 16px;
    height: 16px;
}

.link-button:hover .link-arrow {
    opacity: 1;
    transform: translateX(0);
    color: var(--text-secondary);
}

/* ========================================
   Footer
   ======================================== */

.footer {
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.8125rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    opacity: 0;
    animation: fadeInUp 0.6s var(--ease-out-expo) forwards;
    animation-delay: 0.8s;
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loaded state - enables animations */
body.loaded .gradient-blob {
    animation-play-state: running;
}

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet and larger */
@media (min-width: 640px) {
    :root {
        --container-padding: 32px;
        --button-gap: 14px;
    }

    .title {
        font-size: 3rem;
    }

    .link-button {
        padding: 18px 24px;
        border-radius: 18px;
    }

    .link-icon {
        width: 26px;
        height: 26px;
        margin-right: 16px;
    }

    .link-icon svg {
        width: 22px;
        height: 22px;
    }
}

/* Desktop - larger blobs for bigger screens */
@media (min-width: 1024px) {
    .blob-1 { width: 800px; height: 800px; }
    .blob-2 { width: 700px; height: 700px; }
    .blob-3 { width: 750px; height: 750px; }
    .blob-4 { width: 600px; height: 600px; }
    .blob-5 { width: 500px; height: 500px; }
}

/* Small mobile adjustments */
@media (max-width: 380px) {
    :root {
        --container-padding: 16px;
        --button-gap: 10px;
    }

    .title {
        font-size: 2.25rem;
    }

    .subtitle {
        font-size: 0.9375rem;
    }

    .link-button {
        padding: 14px 16px;
        font-size: 0.875rem;
        border-radius: 14px;
    }

    .link-icon {
        width: 22px;
        height: 22px;
        margin-right: 12px;
    }

    .link-icon svg {
        width: 18px;
        height: 18px;
    }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .gradient-blob {
        animation: none;
    }

    .link-button {
        opacity: 1;
        transform: none;
    }

    .profile-section {
        opacity: 1;
        transform: none;
    }

    .footer {
        opacity: 1;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .link-button {
        border-width: 2px;
        border-color: rgba(255, 255, 255, 0.3);
    }

    .link-button:hover {
        border-color: rgba(255, 255, 255, 0.6);
    }
}

/* Safari-specific fixes for backdrop-filter */
@supports not (backdrop-filter: blur(20px)) {
    .link-button {
        background: rgba(30, 30, 40, 0.9);
    }
}