/* Custom Vanilla CSS for Premium Authentication */

:root {
    --primary: #4facfe;
    --primary-hover: #00f2fe;
    --bg-dark: #0f111a;
    --text-main: #ffffff;
    --text-muted: #a0aec0;
    --input-bg: rgba(255, 255, 255, 0.05);
    --input-border: rgba(255, 255, 255, 0.1);
    --input-focus: rgba(79, 172, 254, 0.5);
    --card-bg: rgba(255, 255, 255, 0.03);
    --error: #ff4b4b;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg-dark);
    color: var(--text-main);
    overflow: hidden;
    min-height: 100vh;
}

.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* Glassmorphism Card */
.auth-card {
    background: var(--card-bg);
    border: 1px solid var(--input-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    z-index: 10;
    position: relative;
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    transform: translateY(30px);
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.auth-header h2 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-header p {
    color: var(--text-muted);
    font-size: 14px;
}

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

.input-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 8px;
    color: #cbd5e0;
}

.input-group input[type="text"],
.input-group input[type="email"],
.input-group input[type="password"] {
    width: 100%;
    padding: 14px 16px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    color: var(--text-main);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.3s ease;
    outline: none;
}

.input-group input::placeholder {
    color: rgba(255, 255, 255, 0.2);
}

.input-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--input-focus);
    background: rgba(255, 255, 255, 0.08);
}

.btn-primary {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px var(--primary);
}

.btn-icon {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.btn-primary:hover .btn-icon {
    transform: translateX(4px);
}

/* Checkbox specific styles */
.checkbox-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.custom-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    position: relative;
}

.custom-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkmark {
    width: 18px;
    height: 18px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 4px;
    display: inline-block;
    position: relative;
    transition: all 0.2s ease;
}

.custom-checkbox input:checked ~ .checkmark {
    background: var(--primary);
    border-color: var(--primary);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 4px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.custom-checkbox input:checked ~ .checkmark:after {
    display: block;
}

.label-text {
    margin-left: 8px;
    font-size: 13px;
    color: var(--text-muted);
}

.forgot-link {
    color: var(--primary);
    font-size: 13px;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.forgot-link:hover {
    color: #fff;
}

.auth-footer {
    text-align: center;
    margin-top: 25px;
    font-size: 14px;
    color: var(--text-muted);
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.auth-footer a:hover {
    color: #fff;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 13px;
}

.alert-error {
    background: rgba(255, 75, 75, 0.1);
    border: 1px solid rgba(255, 75, 75, 0.2);
    color: var(--error);
}

.alert ul {
    padding-left: 20px;
}

/* Animated Background Bubbles */
.bg-bubbles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.bg-bubbles li {
    position: absolute;
    list-style: none;
    display: block;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.05);
    bottom: -160px;
    animation: square 25s infinite;
    transition-timing-function: linear;
    border-radius: 50%;
}

.bg-bubbles li:nth-child(1) { left: 10%; }
.bg-bubbles li:nth-child(2) { left: 20%; width: 80px; height: 80px; animation-delay: 2s; animation-duration: 17s; }
.bg-bubbles li:nth-child(3) { left: 25%; animation-delay: 4s; }
.bg-bubbles li:nth-child(4) { left: 40%; width: 60px; height: 60px; animation-duration: 22s; background-color: rgba(255, 255, 255, 0.08); }
.bg-bubbles li:nth-child(5) { left: 70%; }
.bg-bubbles li:nth-child(6) { left: 80%; width: 120px; height: 120px; animation-delay: 3s; background-color: rgba(255, 255, 255, 0.03); }
.bg-bubbles li:nth-child(7) { left: 32%; width: 160px; height: 160px; animation-delay: 7s; }
.bg-bubbles li:nth-child(8) { left: 55%; width: 20px; height: 20px; animation-delay: 15s; animation-duration: 40s; }
.bg-bubbles li:nth-child(9) { left: 25%; width: 10px; height: 10px; animation-delay: 2s; animation-duration: 40s; background-color: rgba(255, 255, 255, 0.09); }
.bg-bubbles li:nth-child(10) { left: 90%; width: 160px; height: 160px; animation-delay: 11s; }

@keyframes square {
    0% { transform: translateY(0); }
    100% { transform: translateY(-700px) rotate(600deg); }
}