:root {
    /* Dark Modern Color Palette */
    --primary-color: #e8a946; /* Golden/Orange accent */
    --primary-hover: #d49432;
    --secondary-color: #1e3a4c; /* Dark teal */
    --background-color: #0a1118; /* Very dark blue-black */
    --background-gradient-start: #0f1820;
    --background-gradient-mid: #1a2f3c;
    --background-gradient-end: #0f1820;
    --surface-color: rgba(30, 58, 76, 0.3);
    --surface-hover: rgba(30, 58, 76, 0.5);
    --text-main: #ffffff;
    --text-muted: #94a3b8;
    --border-color: rgba(148, 163, 184, 0.2);
    --success-color: #10b981;
    --error-color: #ef4444;
    
    /* Spacing & Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
    --glow: 0 0 20px rgba(232, 169, 70, 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background: linear-gradient(135deg, var(--background-gradient-start) 0%, var(--background-gradient-mid) 50%, var(--background-gradient-end) 100%);
    background-attachment: fixed;
    color: var(--text-main);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(232, 169, 70, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(30, 58, 76, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 50% 50%, rgba(232, 169, 70, 0.015) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
    animation: particleFloat 20s linear infinite;
}

@keyframes particleFloat {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-50px);
    }
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

/* Header */
header {
    background-color: rgba(10, 17, 24, 0.8);
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(12px);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0;
    padding-bottom: 0;
}

h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 0;
    letter-spacing: -0.025em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    letter-spacing: -0.025em;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

/* Buttons */
button {
    background-color: var(--primary-color);
    color: var(--background-color);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-xl);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--glow);
    text-transform: none;
    letter-spacing: 0.01em;
}

button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(232, 169, 70, 0.5);
}

button:disabled {
    background-color: var(--surface-color);
    color: var(--text-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

button#logoutBtn {
    background-color: transparent;
    color: var(--text-main);
    border: 1.5px solid var(--border-color);
    box-shadow: none;
}

button#logoutBtn:hover {
    background-color: var(--surface-color);
    border-color: var(--primary-color);
    box-shadow: var(--glow);
}

/* Forms */
input[type="text"], input[type="email"], input[type="password"], select {
    width: 100%;
    padding: 0.875rem 1rem;
    margin-bottom: 1rem;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    box-sizing: border-box;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background-color: rgba(10, 17, 24, 0.5);
    color: var(--text-main);
    backdrop-filter: blur(8px);
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(232, 169, 70, 0.15), var(--glow);
    background-color: rgba(10, 17, 24, 0.7);
}

input::placeholder {
    color: var(--text-muted);
}

/* Cards */
.card {
    background: var(--surface-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    transition: all 0.3s ease;
}

.card:hover {
    background: var(--surface-hover);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
}

/* Filters Section */
.filters {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    align-items: flex-end;
    background: var(--surface-color);
    padding: 1.75rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(12px);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.filter-group select {
    margin-bottom: 0;
}

/* Project Grid */
.project-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.project-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2rem;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(12px);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.6), var(--glow);
    border-color: var(--primary-color);
    background: var(--surface-hover);
    z-index: 5;
}

.project-card:hover::before {
    opacity: 1;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.875rem;
    line-height: 1.4;
}

.project-title a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

.project-title a:hover {
    color: #f5c78e;
    text-shadow: 0 0 8px rgba(232, 169, 70, 0.3);
}

.project-meta {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    line-height: 1.6;
}

.project-meta strong {
    color: var(--text-main);
    font-weight: 600;
}

.project-description {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 1.5rem;
    flex-grow: 1;
    line-height: 1.6;
    position: relative;
    transition: max-height 0.3s ease;
}

.project-description.truncated {
    display: -webkit-box;
    -webkit-line-clamp: 4;
    line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-description.expanded {
    display: block;
    -webkit-line-clamp: unset;
    line-clamp: unset;
}

.section-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
    display: block;
}

.project-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.skill-tag {
    background-color: rgba(232, 169, 70, 0.15);
    color: var(--primary-color);
    padding: 0.375rem 0.875rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid rgba(232, 169, 70, 0.3);
    transition: all 0.2s ease;
}

.skill-tag:hover {
    background-color: rgba(232, 169, 70, 0.25);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

/* Project Links */
.project-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}

.project-link:hover {
    color: #f5c78e;
    text-decoration: underline;
    text-decoration-color: rgba(232, 169, 70, 0.5);
}

.project-link svg {
    transition: transform 0.2s ease;
}

.project-link:hover svg {
    transform: translate(2px, -2px);
    opacity: 1 !important;
}

/* Login Page */
.login-container {
    max-width: 480px;
    margin: 6rem auto;
    text-align: center;
    padding: 3rem;
    position: relative;
    overflow: visible;
}

.login-container::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, 
        var(--primary-color) 0%, 
        rgba(232, 169, 70, 0.3) 25%,
        rgba(30, 58, 76, 0.3) 50%,
        rgba(232, 169, 70, 0.3) 75%,
        var(--primary-color) 100%);
    border-radius: var(--radius-xl);
    opacity: 0.3;
    filter: blur(20px);
    z-index: -1;
    animation: mysticalGlow 4s ease-in-out infinite;
}

@keyframes mysticalGlow {
    0%, 100% {
        opacity: 0.3;
        filter: blur(20px);
    }
    50% {
        opacity: 0.5;
        filter: blur(30px);
    }
}

.logo-container {
    text-align: center;
    margin-bottom: 2rem;
    position: relative;
}

.login-logo {
    width: 140px;
    height: 140px;
    filter: drop-shadow(0 0 30px rgba(232, 169, 70, 0.6));
    animation: logoFloat 3s ease-in-out infinite;
    position: relative;
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px);
        filter: drop-shadow(0 0 30px rgba(232, 169, 70, 0.6));
    }
    50% {
        transform: translateY(-10px);
        filter: drop-shadow(0 0 50px rgba(232, 169, 70, 0.8));
    }
}

.login-container h2 {
    margin-bottom: 3rem;
    font-size: 2.8rem;
    background: linear-gradient(135deg, #ffffff 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.05em;
    font-weight: 700;
    text-shadow: none;
}

.login-btn {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1.05rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, #d49432 100%);
    box-shadow: 0 0 40px rgba(232, 169, 70, 0.4), 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.4s ease;
}

.login-btn:hover {
    box-shadow: 0 0 60px rgba(232, 169, 70, 0.7), 0 15px 40px rgba(0, 0, 0, 0.4);
    transform: translateY(-3px) scale(1.02);
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 0.925rem;
    font-weight: 500;
    backdrop-filter: blur(8px);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Load More Button */
#loadMoreBtn {
    background-color: transparent;
    color: var(--text-main);
    border: 1.5px solid var(--border-color);
    margin-top: 2rem;
    width: 100%;
    max-width: 220px;
    box-shadow: none;
}

#loadMoreBtn:hover {
    border-color: var(--primary-color);
    background-color: var(--surface-color);
    box-shadow: var(--glow);
}

/* Navigation */
.nav-buttons {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.nav-buttons button {
    background-color: transparent;
    color: var(--text-main);
    border: 1.5px solid var(--border-color);
    box-shadow: none;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.nav-buttons button:hover {
    background-color: var(--surface-color);
    border-color: var(--primary-color);
    box-shadow: var(--glow);
    transform: translateY(-1px);
}

.nav-buttons button.active {
    background-color: var(--primary-color);
    color: #0a1118;
    border-color: var(--primary-color);
    box-shadow: var(--glow);
}