/* Portfolio Styles */

/* Theme system */
:root {
    /* Dark theme (default) */
    --bg-primary: 15, 23, 42;      /* slate-950 */
    --bg-secondary: 30, 41, 59;    /* slate-800 */
    --bg-tertiary: 51, 65, 85;     /* slate-700 */
    --text-primary: 241, 245, 249; /* slate-100 */
    --border-color: 30, 41, 59;    /* slate-800 */
}

/* System preference for light mode */
@media (prefers-color-scheme: light) {
    :root {
        --bg-primary: 249, 250, 251;   /* gray-50 */
        --bg-secondary: 255, 255, 255; /* white */
        --bg-tertiary: 243, 244, 246;  /* gray-100 */
        --text-primary: 17, 24, 39;    /* gray-900 */
        --border-color: 209, 213, 219; /* gray-300 */
    }
}

/* Explicit theme overrides */
[data-theme="light"] {
    --bg-primary: 249, 250, 251;   /* gray-50 */
    --bg-secondary: 255, 255, 255; /* white */
    --bg-tertiary: 243, 244, 246;  /* gray-100 */
    --text-primary: 17, 24, 39;    /* gray-900 */
    --border-color: 209, 213, 219; /* gray-300 */
}

[data-theme="dark"] {
    --bg-primary: 15, 23, 42;      /* slate-950 */
    --bg-secondary: 30, 41, 59;    /* slate-800 */
    --bg-tertiary: 51, 65, 85;     /* slate-700 */
    --text-primary: 241, 245, 249; /* slate-100 */
    --border-color: 30, 41, 59;    /* slate-800 */
}

/* Base styles */
html {
    scroll-behavior: smooth;
}

body {
    background-color: rgb(var(--bg-primary)) !important;
    color: rgb(var(--text-primary));
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Theme toggle styles */
.theme-toggle {
    position: relative;
}

.theme-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: rgb(var(--bg-secondary));
    border: 1px solid rgb(var(--border-color));
    border-radius: 0.5rem;
    padding: 0.5rem 0;
    margin-top: 0.25rem;
    min-width: 120px;
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    z-index: 50;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    color: rgb(var(--text-primary));
}

.theme-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.theme-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    color: inherit;
}

.theme-option:hover {
    background-color: rgba(var(--bg-tertiary), 0.8);
}

.theme-option.active {
    background-color: rgba(var(--bg-tertiary), 0.6);
    font-weight: 500;
}

.theme-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    fill: currentColor;
}

/* Enhanced project card hover effects */
article {
    backdrop-filter: blur(10px);
}

article:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgb(var(--border-color) / 0.3);
}

/* Company logo styling */
.company-logo {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 90px;
    height: 30px;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    object-fit: contain;
    background-color: rgba(var(--bg-primary), 0.8);
    padding: 4px;
}

.company-logo:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgb(var(--border-color) / 0.5);
}

/* Make cards relative for absolute positioning */
.experience-card, .education-card {
    position: relative;
}

/* Theme-specific logo handling */
.sphera-logo-light,
.sphera-logo-dark {
    transition: opacity 0.3s ease;
}

/* Show light logo by default (dark theme) */
.sphera-logo-light {
    opacity: 1;
    pointer-events: auto;
}
.sphera-logo-dark {
    opacity: 0;
    pointer-events: none;
}

/* Switch logos for light theme */
[data-theme="light"] .sphera-logo-light {
    opacity: 0;
    pointer-events: none;
}

[data-theme="light"] .sphera-logo-dark {
    opacity: 1;
    pointer-events: auto;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme]) .sphera-logo-light {
        opacity: 0;
        pointer-events: none;
    }
    
    :root:not([data-theme]) .sphera-logo-dark {
        opacity: 1;
        pointer-events: auto;
    }
}

.utfpr-logo-light,
.utfpr-logo-dark {
    transition: opacity 0.3s ease;
}

/* Show light logo by default (dark theme) */
.utfpr-logo-light {
    opacity: 1;
    pointer-events: auto;
}
.utfpr-logo-dark {
    opacity: 0;
    pointer-events: none;
}

/* Switch logos for light theme */
[data-theme="light"] .utfpr-logo-light {
    opacity: 0;
    pointer-events: none;
}

[data-theme="light"] .utfpr-logo-dark {
    opacity: 1;
    pointer-events: auto;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme]) .utfpr-logo-light {
        opacity: 0;
        pointer-events: none;
    }
    
    :root:not([data-theme]) .utfpr-logo-dark {
        opacity: 1;
        pointer-events: auto;
    }
}



/* Mobile menu styles */
.mobile-menu-enter {
    animation: slideDown 0.3s ease forwards;
}

.mobile-menu-exit {
    animation: slideUp 0.3s ease forwards;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* Flip Card Styles */
.flip-card {
    perspective: 1000px;
    height: 200px; /* Fixed height for consistent card sizing */
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: left;
    transition: transform 0.8s;
    transform-style: preserve-3d;
}

.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 0.5rem;
}

.flip-card-front {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.flip-card-back {
    transform: rotateY(180deg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgb(59, 130, 246, 0.1), rgb(99, 102, 241, 0.1));
}

.flip-card-back img {
    border-radius: 0.5rem;
}