:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-light: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --input-bg: #ffffff;
    --input-border: #e2e8f0;
    --input-focus: #3b82f6;
}

body.login-page {
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-light);
    background-image: radial-gradient(circle at 0% 0%, #e0f2fe 0%, transparent 50%),
                      radial-gradient(circle at 100% 100%, #fef3c7 0%, transparent 50%);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text-color);
    overflow: hidden;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
    z-index: 10;
}

.login-card {
    background: var(--card-bg);
    border: 1px solid var(--input-border);
    border-radius: 24px;
    padding: 48px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    animation: fadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
    letter-spacing: -0.025em;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-color);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper .icon {
    position: absolute;
    left: 15px;
    font-size: 1.1rem;
    color: var(--text-muted);
    pointer-events: none;
    opacity: 0.7;
}

.input-wrapper input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: 12px;
    color: var(--text-color);
    font-size: 1rem;
    transition: all 0.2s ease;
    outline: none;
}

.input-wrapper input::placeholder {
    color: #94a3b8;
}

.input-wrapper input:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--input-focus);
    box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.2);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: #ffffff;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 10px;
}

.login-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.2);
}

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

.alert {
    padding: 12px 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fecaca;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: shake 0.4s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.login-footer {
    text-align: center;
    margin-top: 30px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Float Animation for Background Decorative Elements */
.bg-decor {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
    z-index: 1;
    pointer-events: none;
}

.decor-1 { top: -100px; left: -100px; animation: float 10s infinite; }
.decor-2 { bottom: -100px; right: -100px; animation: float 12s infinite reverse; }

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, 30px); }
}

/* Google OAuth Styles */
.separator {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 24px 0;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

.separator::before,
.separator::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--input-border);
}

.separator:not(:empty)::before {
    margin-right: .5em;
}

.separator:not(:empty)::after {
    margin-left: .5em;
}

.google-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 12px;
    background: #ffffff;
    border: 1px solid var(--input-border);
    border-radius: 12px;
    color: var(--text-color);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.google-btn img {
    width: 20px;
    height: 20px;
}

.google-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}