:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #ec4899;
    --background-dark: #0f172a;
    --surface-dark: #1e293b;
    --text-light: #f8fafc;
    --text-dim: #94a3b8;
    --success: #10b981;
    --error: #ef4444;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --font-main: 'Outfit', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-main);
    background: radial-gradient(circle at top right, #1e293b, #0f172a);
    color: var(--text-light);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    padding: 2rem;
}

/* Glassmorphism Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: center;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dim);
    font-weight: 500;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

input[type="text"],
input[type="email"] {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 0.5rem;
    color: var(--text-light);
    font-size: 1rem;
    transition: all 0.3s ease;
}

input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Buttons */
.btn-primary {
    display: inline-block;
    width: 100%;
    padding: 1rem;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    text-decoration: none;
    transition: filter 0.3s ease, transform 0.2s ease;
    font-size: 1.1rem;
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--text-dim);
    color: var(--text-dim);
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-secondary:hover {
    border-color: var(--text-light);
    color: var(--text-light);
}

/* Utilities */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

/* Dashboard Specifics */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.5rem;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    padding: 0.5rem 1rem;
    position: relative;
    transition: color 0.3s ease;
}

.tab-btn.active {
    color: var(--text-light);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px 3px 0 0;
}

/* Gift List */
.gift-list {
    display: grid;
    gap: 1rem;
}

.gift-item {
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem;
    border-radius: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Table for Offers */
.offers-table {
    width: 100%;
    border-collapse: collapse;
}

.offers-table th, .offers-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.offers-table th {
    color: var(--text-dim);
}

.checkbox-state {
    cursor: pointer;
    font-size: 1.5rem;
    user-select: none;
}