/* Login Page Styles - SCAPO Design */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    height: 100vh;
    overflow: hidden;
    position: relative;
}

/* Background */
.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: linear-gradient(135deg,
        var(--primary-color) 0%,
        var(--primary-color-dark) 50%,
        var(--primary-color-light) 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

.background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

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

/* Floating Elements */
.floating-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.floating-element {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 20s infinite linear;
}

.floating-element:nth-child(1) {
    width: 80px;
    height: 80px;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 25s;
}

.floating-element:nth-child(2) {
    width: 120px;
    height: 120px;
    left: 20%;
    animation-delay: 5s;
    animation-duration: 30s;
}

.floating-element:nth-child(3) {
    width: 60px;
    height: 60px;
    left: 70%;
    animation-delay: 10s;
    animation-duration: 20s;
}

.floating-element:nth-child(4) {
    width: 100px;
    height: 100px;
    left: 80%;
    animation-delay: 15s;
    animation-duration: 35s;
}

.floating-element:nth-child(5) {
    width: 90px;
    height: 90px;
    left: 50%;
    animation-delay: 8s;
    animation-duration: 28s;
}

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) rotate(360deg);
        opacity: 0;
    }
}

/* Login Container */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
}

.login-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 3rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 40px var(--shadow-color),
                0 0 0 1px var(--border-color-light);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent,
        var(--primary-color-light),
        transparent);
}

.login-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 30px 60px var(--shadow-color-dark),
                0 0 0 1px var(--border-color);
}

/* Shake Animation for Error */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-8px); }
    20%, 40%, 60%, 80% { transform: translateX(8px); }
}

.login-card.shake {
    animation: shake 0.6s ease-in-out;
}

/* Logo Section */
.logo-section {
    text-align: center;
    margin-bottom: 2rem;
}

.logo {
    max-width: 200px;
    height: auto;
    margin-bottom: 1.5rem;
    filter: drop-shadow(0 4px 8px var(--shadow-color-light));
}

.login-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg,
        var(--text-color),
        var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-subtitle {
    color: var(--text-color-light);
    font-size: 1rem;
    font-weight: 400;
}

/* Error Message */
.error-message {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    color: var(--error-text);
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    animation: slideDown 0.3s ease;
}

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

.error-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* Form Styles */
.login-form {
    width: 100%;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.label-icon {
    font-size: 1rem;
}

.input-wrapper {
    position: relative;
}

.input-wrapper input {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--form-control-border);
    border-radius: 12px;
    background-color: var(--form-control-bg);
    color: var(--form-control-text);
    font-size: 1rem;
    transition: all 0.2s ease;
    outline: none;
}

.input-wrapper input:focus {
    border-color: var(--form-control-border-focus);
    box-shadow: 0 0 0 3px var(--focus-ring);
    transform: translateY(-1px);
}

.input-wrapper input:hover {
    border-color: var(--primary-color-light);
}

.input-wrapper input::placeholder {
    color: var(--form-control-placeholder);
}

/* Login Button */
.login-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg,
        var(--btn-primary-bg),
        var(--primary-color-dark));
    color: var(--btn-primary-text);
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 12px var(--shadow-color-light);
}

.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent);
    transition: left 0.5s ease;
}

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

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-color);
    background: linear-gradient(135deg,
        var(--btn-primary-hover-bg),
        var(--primary-color-dark));
}

.login-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px var(--shadow-color-light);
}

.login-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--focus-ring);
}

.btn-text {
    display: inline-block;
}

.btn-icon {
    transition: transform 0.2s ease;
    display: inline-block;
}

.login-btn:hover .btn-icon {
    transform: translateX(2px);
}

/* Loading State */
.login-btn.loading {
    opacity: 0.7;
    cursor: not-allowed;
    pointer-events: none;
}

.login-btn.loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 0.5rem;
    vertical-align: text-bottom;
}

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

/* Footer */
.login-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.footer-text {
    color: var(--text-color-light);
    font-size: 0.85rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        padding: 1rem;
    }

    .login-card {
        padding: 2rem;
        margin: 1rem;
    }

    .logo {
        max-width: 150px;
    }

    .login-title {
        font-size: 1.5rem;
    }

    .floating-element {
        display: none;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 1.5rem;
        border-radius: 16px;
    }

    .login-title {
        font-size: 1.25rem;
    }

    .login-subtitle {
        font-size: 0.9rem;
    }

    .input-wrapper input,
    .login-btn {
        padding: 0.875rem 1rem;
        font-size: 0.9rem;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .floating-element {
        animation: none;
    }

    .background-container {
        animation: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .login-card {
        border: 2px solid var(--text-color);
    }

    .input-wrapper input {
        border: 2px solid var(--text-color);
    }

    .login-btn {
        border: 2px solid var(--primary-color);
    }
}