* {
    font-family: 'iranyekan', 'Tahoma', sans-serif;
}

/* ====== تم دارک (پیش‌فرض) ====== */
:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: rgba(31, 41, 55, 0.85);
    --bg-card-hover: rgba(31, 41, 55, 0.95);
    --bg-input: rgba(255, 255, 255, 0.05);
    --bg-input-hover: rgba(255, 255, 255, 0.08);
    --bg-dropdown: #1f2937;
    --text-primary: #ffffff;
    --text-secondary: #d1d5db;
    --text-muted: #6b7280;
    --text-gray: #9ca3af;
    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.15);
    --shadow-color: rgba(0, 0, 0, 0.6);
    --scrollbar-track: #0a0e1a;
    --scrollbar-thumb: rgba(255, 255, 255, 0.15);
    --scrollbar-thumb-hover: rgba(255, 255, 255, 0.25);
    --logo-icon-bg: #f59e0b;
    --logo-icon-color: #111827;
    --logo-text-color: #ffffff;
    --btn-primary-bg: #f59e0b;
    --btn-primary-color: #111827;
    --btn-primary-hover: #d97706;
    --label-color: #d1d5db;
    --error-bg: rgba(239, 68, 68, 0.1);
    --error-color: #ef4444;
    --checkbox-bg: rgba(255, 255, 255, 0.05);
    --checkbox-border: rgba(255, 255, 255, 0.1);
    --checkbox-checked: #f59e0b;
    --divider-color: rgba(255, 255, 255, 0.06);
    --link-color: #f59e0b;
    --link-hover: #d97706;
    --social-btn-bg: rgba(255, 255, 255, 0.05);
    --social-btn-hover: rgba(255, 255, 255, 0.1);
}

/* ====== تم روشن ====== */
[data-theme="light"] {
    --bg-primary: #f1f5f9;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --bg-input: rgba(0, 0, 0, 0.05);
    --bg-input-hover: rgba(0, 0, 0, 0.08);
    --bg-dropdown: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #1e293b;
    --text-muted: #64748b;
    --text-gray: #475569;
    --border-color: rgba(0, 0, 0, 0.06);
    --border-hover: rgba(0, 0, 0, 0.12);
    --shadow-color: rgba(0, 0, 0, 0.1);
    --scrollbar-track: #f1f5f9;
    --scrollbar-thumb: rgba(0, 0, 0, 0.15);
    --scrollbar-thumb-hover: rgba(0, 0, 0, 0.25);
    --logo-icon-bg: #f59e0b;
    --logo-icon-color: #ffffff;
    --logo-text-color: #0f172a;
    --btn-primary-bg: #f59e0b;
    --btn-primary-color: #ffffff;
    --btn-primary-hover: #d97706;
    --label-color: #1e293b;
    --error-bg: rgba(239, 68, 68, 0.1);
    --error-color: #ef4444;
    --checkbox-bg: rgba(0, 0, 0, 0.05);
    --checkbox-border: rgba(0, 0, 0, 0.1);
    --checkbox-checked: #f59e0b;
    --divider-color: rgba(0, 0, 0, 0.06);
    --link-color: #f59e0b;
    --link-hover: #d97706;
    --social-btn-bg: rgba(0, 0, 0, 0.05);
    --social-btn-hover: rgba(0, 0, 0, 0.08);
}

body {
    background: var(--bg-primary);
    min-height: 100vh;
    transition: all 0.3s ease;
}

.text-xs { font-size: 11px !important; }
.text-sm { font-size: 13px !important; }
.text-base { font-size: 15px !important; }
.text-lg { font-size: 17px !important; }
.text-xl { font-size: 20px !important; }
.text-2xl { font-size: 24px !important; }
.text-3xl { font-size: 28px !important; }

/* ====== دکمه تغییر تم ====== */
.theme-toggle {
    cursor: pointer;
    transition: all 0.3s;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 18px;
}
.theme-toggle:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
    transform: rotate(30deg);
}

/* ====== اسکرول ====== */
::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}
::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* ====== استایل‌های فرم ====== */
.form-label {
    color: var(--label-color);
    font-size: 13px;
    font-weight: 500;
    display: block;
    margin-bottom: 6px;
}
.form-label .required {
    color: #ef4444;
    margin-right: 2px;
}
.form-input {
    width: 100%;
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.3s;
}
.form-input:focus {
    outline: none;
    border-color: #f59e0b;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
    background: var(--bg-input-hover);
}
.form-input::placeholder {
    color: var(--text-muted);
}

.password-wrapper {
    position: relative;
}
.password-wrapper .toggle-password {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
    background: none;
    border: none;
    font-size: 16px;
}
.password-wrapper .toggle-password:hover {
    color: var(--text-primary);
}

/* ====== کارت ====== */
.auth-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: 0 8px 32px var(--shadow-color);
    transition: all 0.3s ease;
    max-width: 440px;
    width: 100%;
}

/* ====== لوگو ====== */
.logo-text {
    color: var(--logo-text-color);
    font-size: 22px !important;
    font-weight: 800;
    transition: color 0.3s;
}
.logo-icon {
    background: var(--logo-icon-bg);
    border-radius: 14px;
    padding: 8px 10px;
    color: var(--logo-icon-color);
    font-size: 20px;
    transition: all 0.3s;
}
.logo-sub {
    color: var(--text-muted);
    font-size: 12px;
}

/* ====== دکمه ====== */
.btn-primary {
    padding: 12px 32px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    background: var(--btn-primary-bg);
    color: var(--btn-primary-color);
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
}
.btn-primary:hover {
    background: var(--btn-primary-hover);
    transform: scale(1.02);
    box-shadow: 0 8px 32px rgba(245, 158, 11, 0.3);
}
.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}
.btn-primary:disabled:hover {
    box-shadow: none;
}

/* ====== دکمه‌های اجتماعی ====== */
.social-btn {
    padding: 10px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--social-btn-bg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    flex: 1;
}
.social-btn:hover {
    background: var(--social-btn-hover);
    border-color: var(--border-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
}
.social-btn i {
    font-size: 18px;
}
.social-btn.google i {
    color: #ea4335;
}
.social-btn.github i {
    color: #6e5494;
}
.social-btn.telegram i {
    color: #0088cc;
}

/* ====== چک‌باکس ====== */
.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}
.checkbox-wrapper input[type="checkbox"] {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 5px;
    border: 2px solid var(--checkbox-border);
    background: var(--checkbox-bg);
    cursor: pointer;
    transition: all 0.3s;
    flex-shrink: 0;
    position: relative;
}
.checkbox-wrapper input[type="checkbox"]:checked {
    background: var(--checkbox-checked);
    border-color: var(--checkbox-checked);
}
.checkbox-wrapper input[type="checkbox"]:checked::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #111827;
    font-size: 11px;
}
.checkbox-wrapper .checkbox-label {
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
}

/* ====== پیام‌ها ====== */
.error-message {
    background: var(--error-bg);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--error-color);
    padding: 10px 14px;
    border-radius: 12px;
    display: none;
    align-items: center;
    gap: 10px;
    font-size: 13px;
}
.error-message.show {
    display: flex;
}
.error-message i {
    font-size: 16px;
}

/* ====== لینک‌ها ====== */
.auth-link {
    color: var(--link-color);
    font-weight: 600;
    transition: all 0.2s;
    text-decoration: none;
}
.auth-link:hover {
    color: var(--link-hover);
}

/* ====== موبایل ====== */
@media (max-width: 768px) {
    .auth-card {
        border-radius: 16px;
        padding: 24px 20px !important;
    }
    .logo-text {
        font-size: 18px !important;
    }
    .theme-toggle {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }
    .form-input {
        font-size: 13px;
        padding: 8px 12px;
    }
    .social-btn {
        font-size: 12px;
        padding: 8px;
    }
    .social-btn i {
        font-size: 16px;
    }
}