.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {

    font-size: 28px;
    font-weight: 600;
    color: #2d3436;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav {
    display: flex;
    gap: 40px;
}

.nav a {
    color: #636e72;
    text-decoration: none;
    font-weight: 400;
    font-size: 15px;
    letter-spacing: 0.3px;
    transition: all 0.3s ease;
    position: relative;
}

.nav a:hover {
    color: #2d3436;
}

.nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -5px;
    left: 0;
    background: #00b894;
    transition: width 0.3s ease;
}

.nav a:hover::after {
    width: 100%;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}

.login-container {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 80px;
    align-items: center;
    max-width: 1000px;
    width: 100%;
}

.hero-section {
    text-align: left;
}

.hero-title {

    font-size: 48px;
    font-weight: 500;
    color: #2d3436;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 18px;
    color: #636e72;
    line-height: 1.6;
    margin-bottom: 40px;
    font-weight: 300;
}

.logo-placeholder {
    width: 100%;
    height: 500px;
    color: white;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 64px;
    box-shadow: 0 20px 40px rgba(0, 184, 148, 0.15);
    position: relative;
    overflow: hidden;
    padding: 20px;
}

.logo-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% {
        transform: rotate(0deg) scale(1);
    }
    50% {
        transform: rotate(180deg) scale(1.1);
    }
}

.logo-text {
    position: relative;
    z-index: 2;
    font-weight: 300;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.logo-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.1));
    border-radius: 12px;
}

/* Login Form */
.login-form {
    background: white;
    padding: 48px 40px;
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.form-title {
    font-family: 'Playfair Display', serif;
    font-size: 32px;
    font-weight: 500;
    color: #2d3436;
    margin-bottom: 8px;
    text-align: center;
}

.form-subtitle {
    text-align: center;
    color: #636e72;
    margin-bottom: 32px;
    font-size: 15px;
}

/* Messages */
.message {
    padding: 16px 20px;
    border-radius: 12px;
    margin-bottom: 24px;
    font-size: 14px;
    font-weight: 500;
}

.message.success {
    background: rgba(0, 184, 148, 0.1);
    color: #00b894;
    border: 1px solid rgba(0, 184, 148, 0.2);
}

.message.error {
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
    border: 1px solid rgba(231, 76, 60, 0.2);
}

.message.info {
    background: rgba(0, 206, 201, 0.1);
    color: #00cec9;
    border: 1px solid rgba(0, 206, 201, 0.2);
}

/* Form Fields */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    color: #2d3436;
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 0.3px;
}

.form-input {
    width: 100%;
    padding: 16px 20px;
    border: 1.5px solid #e9ecef;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: #f8f9fa;
    color: #2d3436;
}

.form-input:focus {
    outline: none;
    border-color: #00b894;
    background: white;
    box-shadow: 0 0 0 3px rgba(0, 184, 148, 0.1);
}

.form-input::placeholder {
    color: #adb5bd;
}

.field-error {
    color: #e74c3c;
    font-size: 13px;
    margin-top: 6px;
    font-weight: 400;
}

/* Remember Me */
.remember-section {
    margin-bottom: 32px;
}

.checkbox-container {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
}

.custom-checkbox {
    position: relative;
    width: 20px;
    height: 20px;
    margin-top: 2px;
}

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

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 20px;
    width: 20px;
    background: #f8f9fa;
    border: 1.5px solid #e9ecef;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.custom-checkbox input:checked ~ .checkmark {
    background: #00b894;
    border-color: #00b894;
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

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

.checkbox-label {
    color: #2d3436;
    font-weight: 500;
    font-size: 14px;
    line-height: 1.4;
}

.checkbox-description {
    color: #636e72;
    font-size: 13px;
    margin-top: 4px;
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #00b894 0%, #00cec9 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.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: left 0.5s;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 184, 148, 0.3);
}

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

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

/* Register Link */
.register-link {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #e9ecef;
}

.register-link a {
    color: #00b894;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.register-link a:hover {
    color: #00a085;
}

/* Footer */
footer {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding: 24px 0;
    text-align: center;
    color: #636e72;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    .login-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-title {
        font-size: 36px;
    }

    .login-form {
        padding: 32px 24px;
    }

    .nav {
        gap: 24px;
    }

    .logo-placeholder {
        height: 400px;
        padding: 15px;
    }
}

@media (max-width: 480px) {

    .header-content {
        padding: 16px 0;
    }

    .logo {
        font-size: 24px;
    }

    .nav {
        gap: 16px;
    }

    .nav a {
        font-size: 14px;
    }

    .main-content {
        padding: 40px 20px;
        margin-top: 60px;
    }

    .hero-title {
        font-size: 28px;
    }

    .form-title {
        font-size: 28px;
    }

    .logo-placeholder {
        height: 350px;
        font-size: 48px;
        padding: 10px;
    }
}