/* Presidential Level Login Styles - Fully Responsive */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #1a365d;
    --primary-blue-dark: #0f1e3d;
    --primary-blue-light: #2d3748;
    --accent-gold: #d4af37;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --white: #ffffff;
    --white-transparent: rgba(255, 255, 255, 0.95);
    --border-light: #e2e8f0;
    --error: #e53e3e;
    --warning: #dd6b20;
    --shadow-premium: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5vw;
    line-height: 1.5;
    color: var(--text-primary);
}

/* Background */
.login-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.background-pattern {
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(212, 175, 55, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(212, 175, 55, 0.03) 0%, transparent 50%);
}

/* Main Container - Dynamic Sizing */
.login-container {
    width: 100%;
    max-width: min(400px, 90vw);
    animation: elegantAppear 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes elegantAppear {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Login Card - Dynamic Padding */
.login-card {
    background: var(--white-transparent);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-premium);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Header Section - Dynamic Scaling */
.login-header {
    padding: clamp(25px, 6vw, 40px) clamp(20px, 5vw, 40px) clamp(20px, 5vw, 30px);
    text-align: center;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
}

.logo-container {
    margin-bottom: clamp(15px, 4vw, 20px);
}

.logo {
    width: clamp(50px, 12vw, 70px);
    height: clamp(50px, 12vw, 70px);
    border-radius: 12px;
    object-fit: contain;
    border: 2px solid var(--accent-gold);
    padding: 4px;
    background: var(--white);
}

.system-title {
    font-size: clamp(18px, 5vw, 24px);
    font-weight: 300;
    margin-bottom: clamp(5px, 1.5vw, 8px);
    letter-spacing: -0.5px;
}

.system-subtitle {
    font-size: clamp(12px, 3vw, 14px);
    font-weight: 400;
    opacity: 0.9;
}

/* Login Form - Dynamic Padding */
.login-form {
    padding: clamp(20px, 5vw, 30px) clamp(20px, 5vw, 40px);
}

/* Messages */
.error-message {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: clamp(10px, 3vw, 14px) clamp(12px, 3vw, 16px);
    background: rgba(229, 62, 62, 0.05);
    border: 1px solid rgba(229, 62, 62, 0.2);
    border-radius: var(--border-radius);
    margin-bottom: clamp(15px, 4vw, 20px);
    color: var(--error);
    font-size: clamp(12px, 3vw, 14px);
}

.security-warning {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: clamp(10px, 3vw, 12px) clamp(12px, 3vw, 16px);
    background: rgba(221, 107, 32, 0.05);
    border: 1px solid rgba(221, 107, 32, 0.2);
    border-radius: var(--border-radius);
    margin-bottom: clamp(15px, 4vw, 20px);
    color: var(--warning);
    font-size: clamp(12px, 3vw, 14px);
}

/* Form Elements */
.form-group {
    margin-bottom: clamp(15px, 4vw, 20px);
}

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

.form-input {
    width: 100%;
    padding: clamp(12px, 3.5vw, 14px) clamp(14px, 4vw, 16px) clamp(12px, 3.5vw, 14px) clamp(40px, 10vw, 44px);
    font-size: clamp(14px, 4vw, 15px);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    background: var(--white);
    color: var(--text-primary);
    transition: var(--transition);
    font-weight: 400;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

.form-input::placeholder {
    color: var(--text-light);
    font-weight: 400;
}

.input-icon {
    position: absolute;
    left: clamp(14px, 4vw, 16px);
    color: var(--text-light);
    font-size: clamp(14px, 4vw, 16px);
    transition: var(--transition);
}

.form-input:focus + .input-icon {
    color: var(--primary-blue);
}

.password-toggle {
    position: absolute;
    right: clamp(14px, 4vw, 16px);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: clamp(14px, 4vw, 16px);
    transition: var(--transition);
    padding: 4px;
    border-radius: 4px;
}

.password-toggle:hover {
    color: var(--primary-blue);
    background: rgba(26, 54, 93, 0.05);
}

/* Form Options - Dynamic Layout */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: clamp(20px, 5vw, 25px);
    flex-wrap: wrap;
    gap: 10px;
}

.option-checkbox {
    display: flex;
    align-items: center;
    gap: clamp(8px, 2vw, 10px);
    cursor: pointer;
    font-size: clamp(13px, 3.5vw, 14px);
    color: var(--text-secondary);
}

.option-checkbox input {
    display: none;
}

.checkmark {
    width: clamp(16px, 4vw, 18px);
    height: clamp(16px, 4vw, 18px);
    border: 2px solid var(--border-light);
    border-radius: 4px;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
}

.option-checkbox input:checked + .checkmark {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
}

.option-checkbox input:checked + .checkmark::after {
    content: '';
    position: absolute;
    left: 4px;
    top: 1px;
    width: 4px;
    height: 7px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.forgot-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-size: clamp(13px, 3.5vw, 14px);
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.forgot-link:hover {
    color: var(--primary-blue-dark);
}

/* Login Button - Dynamic Sizing */
.login-button {
    width: 100%;
    padding: clamp(14px, 4vw, 16px);
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    font-size: clamp(15px, 4vw, 16px);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 5px;
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(26, 54, 93, 0.3);
}

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

.button-loader {
    display: none;
}

.spinner {
    width: clamp(16px, 4vw, 18px);
    height: clamp(16px, 4vw, 18px);
    border: 2px solid transparent;
    border-top: 2px solid var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Simple Footer - Dynamic Padding */
.login-footer {
    padding: clamp(15px, 4vw, 20px) clamp(20px, 5vw, 40px);
    text-align: center;
    background: #f8fafc;
    border-top: 1px solid var(--border-light);
}

.login-footer p {
    color: var(--text-secondary);
    font-size: clamp(13px, 3.5vw, 14px);
}

.login-footer a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.login-footer a:hover {
    color: var(--primary-blue-dark);
}

/* Ultra Small Devices (Very small phones) */
@media (max-width: 360px) {
    body {
        padding: 3vw;
    }
    
    .login-container {
        max-width: 95vw;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .forgot-link {
        align-self: flex-end;
    }
}

/* Tall Mobile Devices */
@media (max-height: 700px) and (max-width: 480px) {
    body {
        padding: 2vh 5vw;
        align-items: flex-start;
    }
    
    .login-container {
        margin-top: 2vh;
    }
    
    .login-header {
        padding: 20px 20px 15px;
    }
    
    .login-form {
        padding: 15px 20px;
    }
    
    .form-group {
        margin-bottom: 12px;
    }
}

/* Landscape Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    body {
        padding: 1vh 5vw;
        align-items: flex-start;
    }
    
    .login-container {
        max-width: 95vw;
        margin-top: 1vh;
    }
    
    .login-header {
        padding: 15px 20px 10px;
    }
    
    .logo {
        width: 40px;
        height: 40px;
    }
    
    .system-title {
        font-size: 16px;
        margin-bottom: 2px;
    }
    
    .system-subtitle {
        font-size: 11px;
    }
    
    .login-form {
        padding: 10px 20px;
    }
    
    .form-group {
        margin-bottom: 8px;
    }
    
    .form-input {
        padding: 8px 12px 8px 36px;
        font-size: 14px;
    }
    
    .input-icon {
        font-size: 14px;
        left: 12px;
    }
    
    .form-options {
        margin-bottom: 12px;
    }
    
    .login-footer {
        padding: 10px 20px;
    }
}

/* Large Screens */
@media (min-width: 1200px) {
    .login-container {
        max-width: 380px;
    }
}

/* Prevent scrolling on all devices */
html, body {
    overflow: hidden;
    height: 100%;
}

.login-container {
    max-height: 95vh;
}