/* ========================================
   GLOBAL STYLES
   ======================================== */

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

:root {
    --primary-color: #6366f1;
    --secondary-color: #f59e0b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f97316;
    --dark-bg: #0f172a;
    --light-bg: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.15);
}

html, body {
    height: 100%;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-primary);
    background-color: var(--light-bg);
    line-height: 1.6;
}

/* ========================================
   NAVBAR
   ======================================== */

.navbar {
    background: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-img {
    display: block;
    flex-shrink: 0;
}

.logo-icon {
    font-size: 1.75rem;
}

.nav-menu {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-auth {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
}

.nav-user {
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.btn-nav {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
}

.btn-outline {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

/* ========================================
   MAIN CONTENT
   ======================================== */

.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem;
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    padding: 0.9rem 1.8rem;
    border: none;
    border-radius: 10px;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: left 0.3s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #4f46e5 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn-primary:active {
    transform: translateY(-2px);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary {
    background: white;
    color: var(--text-primary);
    border: 2.5px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(99, 102, 241, 0.15);
}

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

.btn-lg {
    padding: 1.2rem 2.5rem;
    font-size: 1.15rem;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 2rem 2rem;
    margin-top: 3rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 2rem;
    text-align: left;
    margin-bottom: 2rem;
}

.footer-logo {
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
}

.footer-brand p {
    color: #94a3b8;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.footer-links h4 {
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.footer-links a {
    display: block;
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

.footer-links a:hover {
    color: white;
}

.footer-copy {
    text-align: center;
    color: #64748b;
    font-size: 0.85rem;
    padding-top: 1.5rem;
    border-top: 1px solid #334155;
}

.messages-banner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 2rem 0;
}

.message {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.message-success {
    background: #d1fae5;
    color: #065f46;
}

.message-error {
    background: #fee2e2;
    color: #991b1b;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
        margin-left: auto;
    }

    .navbar-container.nav-open .nav-menu,
    .navbar-container.nav-open .nav-auth {
        display: flex;
        flex-direction: column;
        width: 100%;
    }

    .nav-menu,
    .nav-auth {
        display: none;
    }

    .nav-auth {
        margin-left: 0;
        padding-top: 0.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .main-content {
        padding: 1rem;
    }

    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}