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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    min-height: 100vh;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 480px;
}

.auth-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 40px;
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.logo-section {
    text-align: center;
    margin-bottom: 40px;
}

.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.6) 0%, rgba(59, 130, 246, 0) 70%);
    filter: blur(20px);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.logo {
    position: relative;
    display: inline-block;
    margin-bottom: 20px;
}

.logo-section h1 {
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.logo-section p {
    color: #94a3b8;
    font-size: 14px;
}

.auth-form h2 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #e2e8f0;
    text-align: center;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #cbd5e1;
    font-size: 14px;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: white;
    font-size: 15px;
    transition: all 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #3b82f6;
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group input::placeholder {
    color: #64748b;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 14px;
}

.checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: #cbd5e1;
}

.checkbox input {
    margin-right: 8px;
    cursor: pointer;
}

.forgot-link, .terms-link {
    color: #60a5fa;
    text-decoration: none;
    transition: color 0.3s;
}

.forgot-link:hover, .terms-link:hover {
    color: #3b82f6;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(59, 130, 246, 0.5);
}

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

.divider {
    text-align: center;
    margin: 30px 0;
    position: relative;
}

.divider::before,
.divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.divider::before {
    left: 0;
}

.divider::after {
    right: 0;
}

.divider span {
    background: rgba(255, 255, 255, 0.05);
    padding: 0 15px;
    color: #64748b;
    font-size: 13px;
}

.switch-auth {
    text-align: center;
    color: #cbd5e1;
    font-size: 14px;
}

.switch-auth a {
    color: #60a5fa;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.switch-auth a:hover {
    color: #3b82f6;
}

.resend-btn {
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.3);
    padding: 14px 20px;
    border-radius: 12px;
    color: #60a5fa;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

.resend-btn:hover {
    background: rgba(59, 130, 246, 0.3);
}

.resend-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.input-note {
    font-size: 12px;
    color: #94a3b8;
    margin-top: 8px;
}

#verificationSection {
    animation: slideDown 0.3s ease;
}

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

/* Country Code Dropdown */
.phone-input-group {
    display: flex;
    gap: 12px;
}

.country-code-wrapper {
    position: relative;
    flex-shrink: 0;
}

.country-code-display {
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: white;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
    min-width: 100px;
}

.country-code-display:hover {
    border-color: #3b82f6;
    background: rgba(255, 255, 255, 0.12);
}

.country-code-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: #1e293b;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    width: 300px;
    max-height: 320px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    animation: dropdownSlide 0.2s ease;
}

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

.country-code-search {
    width: calc(100% - 24px);
    margin: 12px;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: white;
    font-size: 14px;
}

.country-code-search:focus {
    outline: none;
    border-color: #3b82f6;
    background: rgba(255, 255, 255, 0.12);
}

.country-code-search::placeholder {
    color: #64748b;
}

.country-code-options {
    max-height: 240px;
    overflow-y: auto;
    padding: 4px;
}

.country-code-options::-webkit-scrollbar {
    width: 8px;
}

.country-code-options::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.country-code-options::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.country-code-options::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

.country-code-option {
    padding: 12px 16px;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #cbd5e1;
    font-size: 14px;
}

.country-code-option:hover {
    background: rgba(59, 130, 246, 0.2);
    color: white;
}

.country-code-option span {
    color: #60a5fa;
    font-weight: 600;
}

.login-method-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    background: rgba(255, 255, 255, 0.05);
    padding: 4px;
    border-radius: 12px;
}

.tab-btn {
    flex: 1;
    padding: 12px;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: #94a3b8;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.tab-btn.active {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.tab-btn:hover:not(.active) {
    color: #cbd5e1;
    background: rgba(255, 255, 255, 0.05);
}

@media (max-width: 640px) {
    .auth-card {
        padding: 30px 20px;
    }

    .auth-form h2 {
        font-size: 20px;
    }

    .logo-section h1 {
        font-size: 28px;
    }
    
    .country-code-dropdown {
        width: 280px;
    }
    
    .phone-input-group {
        flex-direction: column;
    }
    
    .country-code-display {
        width: 100%;
    }
}