/* Variables */
:root {
    --login-primary: #3b82f6;
    --login-primary-dark: #2563eb;
    --login-primary-light: #60a5fa;
    --login-secondary: #ec4899;
    --login-accent: #8b5cf6;
    --login-background: #0f172a;
    --login-card-bg: rgba(30, 41, 59, 0.7);
    --login-text: #f1f5f9;
    --login-text-muted: #94a3b8;
    --login-success: #10b981;
    --login-error: #ef4444;
    --login-warning: #f59e0b;
    --login-info: #0ea5e9;
}

/* Animations */
@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

@keyframes shine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Base Styles */
body.login-page {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--login-background);
    color: var(--login-text);
}

.login-container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

/* Background Animation */
.background {
    position: fixed;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    background: linear-gradient(
        45deg,
        var(--login-background),
        var(--login-primary-dark),
        var(--login-accent),
        var(--login-secondary),
        var(--login-background)
    );
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    z-index: 0;
}

.background span {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.background span:nth-child(1) {
    width: 100px;
    height: 100px;
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.background span:nth-child(2) {
    width: 150px;
    height: 150px;
    top: 60%;
    left: 80%;
    animation-delay: 1s;
}

.background span:nth-child(3) {
    width: 80px;
    height: 80px;
    top: 40%;
    left: 60%;
    animation-delay: 2s;
}

.background span:nth-child(4) {
    width: 120px;
    height: 120px;
    top: 80%;
    left: 30%;
    animation-delay: 3s;
}

.background span:nth-child(5) {
    width: 90px;
    height: 90px;
    top: 10%;
    left: 70%;
    animation-delay: 4s;
}

/* Login Card */
.login-card {
    position: relative;
    width: 100%;
    max-width: 450px;
    background: var(--login-card-bg);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 3rem 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(
        115deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    transition: 0.5s;
}

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

/* Logo Styles */
.brand-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
}

.brand-logo img {
    width: 180px;
    height: auto;
    transition: transform 0.3s ease;
}

.brand-logo:hover img {
    transform: scale(1.05);
}

/* Logo EDF styles */
.edf-logo {
    max-width: 150px;
    height: auto;
}

.edf-logo .letters {
    fill: white; /* Les lettres EDF en blanc */
}

.edf-logo .flames path:first-child {
    fill: #EE1C25; /* Rouge pour la grande flamme */
}

.edf-logo .flames path:last-child {
    fill: #EC6608; /* Orange pour la petite flamme */
}

/* Typography */
.title {
    text-align: center;
    margin-bottom: 0.5rem;
}

.gradient-text {
    background: linear-gradient(
        45deg,
        var(--login-primary-light),
        var(--login-accent),
        var(--login-secondary)
    );
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: 2.5rem;
    font-weight: 700;
}

.subtitle {
    text-align: center;
    color: var(--login-text-muted);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.input-wrapper {
    position: relative;
    margin-bottom: 1.5rem;
}

.input-wrapper input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 12px;
    color: var(--login-text);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.input-wrapper input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 2px var(--login-primary);
}

.input-wrapper label {
    position: absolute;
    left: 3rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--login-text-muted);
    transition: all 0.3s ease;
    pointer-events: none;
}

.input-wrapper.focused label,
.input-wrapper input:not(:placeholder-shown) + label {
    top: 0;
    left: 1rem;
    font-size: 0.8rem;
    padding: 0 0.5rem;
    background: var(--login-card-bg);
    border-radius: 4px;
    color: var(--login-primary-light);
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--login-text-muted);
    transition: color 0.3s ease;
}

.input-wrapper.focused .input-icon {
    color: var(--login-primary-light);
}

.input-underline {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(
        90deg,
        var(--login-primary),
        var(--login-accent),
        var(--login-secondary)
    );
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.input-wrapper.focused .input-underline {
    transform: scaleX(1);
}

/* Toggle Password Button */
.toggle-password {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--login-text-muted);
    cursor: pointer;
    padding: 0;
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

.toggle-password:hover {
    color: var(--login-primary-light);
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Custom Checkbox */
.custom-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
    color: #e2e8f0;
    font-weight: 500;
}

.custom-checkbox input {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border-radius: 6px;
    margin-right: 0.75rem;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.custom-checkbox input:checked + .checkmark {
    background: #3b82f6;
    border-color: #3b82f6;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.custom-checkbox input:checked + .checkmark::after {
    content: '✓';
    color: white;
    font-size: 14px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.custom-checkbox:hover .checkmark {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.custom-checkbox span:not(.checkmark) {
    opacity: 0.9;
}

.custom-checkbox:hover span:not(.checkmark) {
    opacity: 1;
    color: #f8fafc;
}

/* Links */
.forgot-password {
    color: var(--login-text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.forgot-password::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    bottom: -2px;
    left: 0;
    background: var(--login-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.forgot-password:hover {
    color: var(--login-primary-light);
}

.forgot-password:hover::after {
    transform: scaleX(1);
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: .5rem;
    background: #FF5E11;
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    margin-bottom: 1rem;
}

.submit-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: 0.5s;
}

.submit-btn:hover {
    background: #FF7A3D;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 94, 17, 0.3);
}

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

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

.btn-content {
    position: relative;
    z-index: 1;
}

.submit-btn i {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.submit-btn:hover i {
    transform: translateX(4px);
}

/* Register Link */
.register-link {
    text-align: center;
    color: var(--login-text-muted);
}

.register-link a {
    color: var(--login-primary-light);
    text-decoration: none;
    margin-left: 0.5rem;
    position: relative;
}

.register-link a::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    bottom: -2px;
    left: 0;
    background: var(--login-primary-light);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.register-link a:hover::after {
    transform: scaleX(1);
}

/* Alert Styles */
.alert {
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.alert i {
    font-size: 1.2rem;
}

.alert.error {
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
}

.alert.info {
    background: rgba(14, 165, 233, 0.1);
    color: #7dd3fc;
}

.alert-link {
    color: inherit;
    text-decoration: underline;
    opacity: 0.9;
}

.alert-link:hover {
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-card {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }

    .gradient-text {
        font-size: 2rem;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 1rem;
    }

    .gradient-text {
        font-size: 1.75rem;
    }

    .input-wrapper input {
        font-size: 0.95rem;
    }
}

/* Dark Mode Optimization */
@media (prefers-color-scheme: dark) {
    .login-card {
        box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
    }
}