/* ============================================
   SS Barras e Direção — Login Stylesheet
   ============================================ */

:root {
    --primary: #B71C1C;
    --primary-dark: #7F0000;
    --secondary: #0D0D0D;
    --dark: #1a1a1a;
    --darker: #111111;
    --accent: #FFC107;
    --accent-dark: #FF8F00;
    --metal: #78909C;
    --metal-light: #B0BEC5;
    --light: #e8e8e8;
    --white: #ffffff;
    --text: #f0f0f0;
    --text-dim: #aaaaaa;
    --input-bg: #1a1a1a;
    --input-border: #333333;
    --card-bg: linear-gradient(180deg, #1a1a1a 0%, #0D0D0D 100%);
    --shadow: 0 15px 50px rgba(0,0,0,0.7);
}

[data-theme="light"] {
    --primary: #B71C1C;
    --primary-dark: #7F0000;
    --secondary: #f5f5f5;
    --dark: #ffffff;
    --darker: #f0f0f0;
    --accent: #B71C1C;
    --accent-dark: #7F0000;
    --metal: #555555;
    --metal-light: #777777;
    --light: #e0e0e0;
    --white: #1a1a1a;
    --text: #222222;
    --text-dim: #555555;
    --input-bg: #ffffff;
    --input-border: #cccccc;
    --card-bg: linear-gradient(180deg, #ffffff 0%, #f5f5f5 100%);
    --shadow: 0 15px 50px rgba(0,0,0,0.15);
}

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

body {
    font-family: 'Roboto', sans-serif;
    color: var(--text);
    background: var(--darker);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: background 0.4s ease, color 0.4s ease;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        linear-gradient(135deg, rgba(13,13,13,0.97) 0%, rgba(26,26,26,0.95) 100%),
        url('https://images.unsplash.com/photo-1601584115197-04ecc0da31d7?w=1920&q=80');
    background-size: cover;
    background-position: center;
    z-index: -2;
    transition: background 0.4s ease;
}

[data-theme="light"] body::before {
    background:
        linear-gradient(135deg, rgba(240,240,240,0.92) 0%, rgba(220,220,220,0.9) 100%),
        url('https://images.unsplash.com/photo-1601584115197-04ecc0da31d7?w=1920&q=80');
}

/* Header bar */
.login-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, var(--secondary) 0%, var(--darker) 100%);
    border-bottom: 3px solid var(--primary);
    padding: 12px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0,0,0,0.6);
    transition: background 0.4s ease;
}

.login-header .logo {
    font-family: 'Oswald', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.login-header .logo .gear {
    color: var(--accent);
    font-size: 1.6rem;
    animation: spin 8s linear infinite;
}

.login-header .logo span {
    color: var(--accent);
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 2px solid var(--accent);
    color: var(--accent);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    background: var(--accent);
    color: var(--darker);
    transform: rotate(15deg);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    position: absolute;
    transition: opacity 0.3s, transform 0.4s;
}

.theme-toggle .icon-sun {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.theme-toggle .icon-moon {
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

[data-theme="light"] .theme-toggle .icon-sun {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

[data-theme="light"] .theme-toggle .icon-moon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* Stripe */
.stripe-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: repeating-linear-gradient(
        45deg,
        var(--primary),
        var(--primary) 10px,
        var(--accent) 10px,
        var(--accent) 20px
    );
    z-index: 1001;
}

/* Login Container */
.login-wrapper {
    width: 100%;
    max-width: 420px;
    padding: 20px;
    margin-top: 60px;
}

.login-card {
    background: var(--card-bg);
    border-radius: 4px;
    padding: 45px 40px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255,255,255,0.05);
    position: relative;
    overflow: hidden;
    transition: background 0.4s ease, box-shadow 0.4s ease;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
}

/* Logo area */
.logo-area {
    text-align: center;
    margin-bottom: 30px;
}

.logo-area .system-icon {
    font-size: 3rem;
    margin-bottom: 10px;
    display: block;
}

.logo-area h1 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 5px;
}

.logo-area .subtitle {
    font-size: 0.9rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* Divider */
.divider {
    width: 60px;
    height: 3px;
    background: var(--primary);
    margin: 0 auto 25px;
}

/* Input Groups */
.input-group {
    margin-bottom: 22px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--metal-light);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Oswald', sans-serif;
}

.input-group input {
    width: 100%;
    padding: 14px 16px;
    background: var(--input-bg);
    border: 2px solid var(--input-border);
    border-radius: 4px;
    font-size: 16px;
    color: var(--text);
    font-family: 'Roboto', sans-serif;
    transition: all 0.3s;
    outline: none;
}

.input-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(183, 28, 28, 0.15);
}

.input-group input::placeholder {
    color: var(--text-dim);
    opacity: 0.6;
}

/* Submit Button */
.btn-submit {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
    letter-spacing: 2px;
    box-shadow: 0 6px 20px rgba(183, 28, 28, 0.3);
    border: 2px solid transparent;
    margin-top: 10px;
    position: relative;
    overflow: hidden;
}

.btn-submit:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #5c0000 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(183, 28, 28, 0.5);
    border-color: var(--accent);
}

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

/* Error Message */
.error-message {
    background: rgba(183, 28, 28, 0.15);
    border: 2px solid var(--primary);
    color: var(--accent);
    padding: 14px;
    border-radius: 4px;
    margin-bottom: 25px;
    text-align: center;
    font-size: 0.95rem;
    font-weight: 500;
    font-family: 'Roboto', sans-serif;
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px); }
    75% { transform: translateX(8px); }
}

/* Footer */
.login-footer {
    text-align: center;
    margin-top: 25px;
    font-size: 0.8rem;
    color: var(--metal);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.login-footer strong {
    color: var(--text);
    font-family: 'Oswald', sans-serif;
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 35px 25px;
    }
    .login-header .logo {
        font-size: 1.1rem;
    }
    .login-header .logo .gear {
        font-size: 1.3rem;
    }
    .logo-area h1 {
        font-size: 1.3rem;
    }
    .login-wrapper {
        padding: 15px;
        margin-top: 50px;
    }
}