/* =====================================================
   Portfolio Link Tree - Premium Styles
   ===================================================== */

/* CSS Custom Properties - Dark Theme (Default) */
:root {
    /* Colors */
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-card: #141414;
    --bg-card-hover: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-tertiary: #666666;
    --accent-color: #ffffff;
    --border-color: rgba(255, 255, 255, 0.08);
    --shadow-color: rgba(0, 0, 0, 0.4);

    /* Sizing */
    --container-max-width: 420px;
    --card-radius: 20px;
    --button-radius: 14px;
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Typography */
    --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #f5f5f5;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #fafafa;
    --text-primary: #000000;
    --text-secondary: #555555;
    --text-tertiary: #888888;
    --accent-color: #000000;
    --border-color: rgba(0, 0, 0, 0.08);
    --shadow-color: rgba(0, 0, 0, 0.1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Background Gradient */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
            #0a0a0a 0%,
            #0d0d0d 15%,
            #0a0a0a 25%,
            #0e0e0e 45%,
            #0a0a0a 65%,
            #0d0d0d 85%,
            #0a0a0a 100%);
    background-size: 200% 200%;
    animation: gradient-shift 15s ease infinite;
    z-index: -3;
}

[data-theme="light"] .bg-gradient {
    background: linear-gradient(135deg,
            #fafbfc 0%,
            #f5f6f7 15%,
            #f3f4f6 25%,
            #f8f9fa 45%,
            #f5f6f7 65%,
            #f3f4f6 85%,
            #f0f1f3 100%);
}

@keyframes gradient-shift {

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

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

/* Canvas Wrapper */
.bg-canvas-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: -2;
    pointer-events: none;
}

.bg-canvas-wrapper canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Grid Overlay */
.bg-grid-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
}

.bg-grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 24px 24px;
    mask-image: radial-gradient(80% 60% at 50% 50%, black 0%, transparent 85%);
    -webkit-mask-image: radial-gradient(80% 60% at 50% 50%, black 0%, transparent 85%);
    transform-style: preserve-3d;
    animation: grid-gravity 20s ease-in-out infinite;
    opacity: 0.24;
}

[data-theme="light"] .bg-grid-overlay {
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.3) 1px, transparent 1px);
    opacity: 0.24;
}

@keyframes grid-gravity {

    0%,
    100% {
        background-position: 0 0;
        transform: perspective(1000px) rotateX(0deg) rotateY(0deg) translateZ(0px);
    }

    25% {
        background-position: -2px -1px;
        transform: perspective(1000px) rotateX(1deg) rotateY(-0.5deg) translateZ(2px);
    }

    50% {
        background-position: 1px 2px;
        transform: perspective(1000px) rotateX(-0.5deg) rotateY(1deg) translateZ(-1px);
    }

    75% {
        background-position: -1px 1px;
        transform: perspective(1000px) rotateX(0.5deg) rotateY(0.5deg) translateZ(1px);
    }
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    min-height: 100vh;
    position: relative;
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 20px var(--shadow-color);
    z-index: 100;
    border: 1px solid var(--border-color);
}

.theme-toggle:hover {
    transform: scale(1.1);
    background: var(--bg-card-hover);
}

.theme-toggle .fa-sun {
    display: none;
}

.theme-toggle .fa-moon {
    display: block;
}

[data-theme="light"] .theme-toggle .fa-sun {
    display: block;
}

[data-theme="light"] .theme-toggle .fa-moon {
    display: none;
}

/* Card Base */
.card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    box-shadow: 0 4px 24px var(--shadow-color);
}

/* Main Profile Card */
.main-card {
    padding: var(--spacing-xl);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

/* Profile Section */
.profile-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    border: 3px solid var(--border-color);
    overflow: hidden;
}

[data-theme="light"] .avatar {
    background: #ffffff;
}

.avatar-initials {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.avatar img {
    width: 120%;
    height: 120%;
    object-fit: cover;
}

.profile-name {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
}

.profile-title {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 400;
}

/* Tagline */
.tagline {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

/* Connect Button */
.connect-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    color: var(--accent-color);
    text-decoration: none;
    border-radius: var(--button-radius);
    font-size: var(--font-size-md);
    font-weight: 500;
    transition: all var(--transition-normal);
    border: 2px solid var(--accent-color);
}

.connect-btn:hover {
    background: var(--accent-color);
    color: var(--bg-primary);
    box-shadow: 0 8px 24px var(--shadow-color);
}

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

/* Links Section */
.links-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

/* Link Card */
.link-card {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    text-decoration: none;
    color: inherit;
    gap: var(--spacing-md);
}

.link-card:hover {
    background: var(--bg-card-hover);
    transform: translateX(4px);
}

.link-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
}

[data-theme="light"] .link-icon {
    background: rgba(0, 0, 0, 0.03);
}

.link-card:hover .link-icon {
    background: var(--accent-color);
    color: var(--bg-primary);
    border-color: transparent;
}

.link-content {
    flex: 1;
    min-width: 0;
}

.link-title {
    font-size: var(--font-size-md);
    font-weight: 500;
    margin-bottom: 2px;
}

.link-description {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.link-arrow {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    transition: all var(--transition-normal);
    opacity: 0;
}

.link-card:hover .link-arrow {
    opacity: 1;
    transform: translateX(4px);
}

/* Message Card */
.message-card {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.message-title {
    font-size: var(--font-size-md);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.message-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.message-input {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--button-radius);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--font-size-sm);
    transition: all var(--transition-normal);
    outline: none;
}

.message-input:focus {
    border-color: var(--accent-color);
    background: var(--bg-card);
}

.message-input::placeholder {
    color: var(--text-tertiary);
}

.message-textarea {
    resize: vertical;
    min-height: 80px;
    max-height: 200px;
    font-family: inherit;
    line-height: 1.5;
}

.message-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    border-radius: var(--button-radius);
    font-family: inherit;
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.message-submit:hover {
    background: var(--accent-color);
    color: var(--bg-primary);
}

.message-submit:active {
    transform: translateY(0);
}

.message-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.message-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

.message-note i {
    font-size: 1rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.footer p {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

/* Responsive Adjustments */
@media (max-width: 767px) {
    .container {
        padding-top: var(--spacing-sm);
    }
}

@media (min-width: 768px) {
    .container {
        padding: var(--spacing-xl);
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .theme-toggle {
        top: var(--spacing-xl);
        right: var(--spacing-xl);
    }
}

@media (min-width: 1024px) {
    :root {
        --container-max-width: 460px;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.main-card {
    animation: fadeIn 0.6s ease forwards;
}

.links-section .link-card {
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

.links-section .link-card:nth-child(1) {
    animation-delay: 0.1s;
}

.links-section .link-card:nth-child(2) {
    animation-delay: 0.15s;
}

.links-section .link-card:nth-child(3) {
    animation-delay: 0.2s;
}

.links-section .link-card:nth-child(4) {
    animation-delay: 0.25s;
}

.links-section .link-card:nth-child(5) {
    animation-delay: 0.3s;
}

.links-section .link-card:nth-child(6) {
    animation-delay: 0.35s;
}

.links-section .link-card:nth-child(7) {
    animation-delay: 0.4s;
}

.message-card {
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
    animation-delay: 0.5s;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--text-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Selection */
::selection {
    background: var(--accent-color);
    color: var(--bg-primary);
}

/* Focus Visible for Accessibility */
*:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {

    .theme-toggle,
    .message-card {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}