:root {
    --bg-main: #0F1115;
    --bg-elevated: #15181D;
    --bg-secondary: #1A1D23;
    --border-soft: #242A33;
    --text-primary: #F8F9FB;
    --text-muted: #9BA3B4;
    --text-disabled: #5A6270;
    --primary: #39FF14;
    --primary-dark: #1FBF0F;
    --error: #FF3B3B;
    --warning: #FF9500;
    --info: #0A84FF;
    --glow: 0 0 24px rgba(57, 255, 20, 0.55);
    --card-shadow: 0 18px 45px rgba(0, 0, 0, 0.65);
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition-base: all 0.3s ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary, #F8F9FB) !important;
    background: var(--bg-main, #0F1115) !important;
    min-height: 100vh;
}

/* Fallback - CSS değişkenleri yüklenmezse */
html {
    background-color: #0F1115 !important;
    color: #F8F9FB !important;
}

body {
    background-color: #0F1115 !important;
    color: #F8F9FB !important;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover,
a:focus {
    color: var(--text-primary);
}

.rf-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    padding: 0.85rem 1.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    border: none;
    cursor: pointer;
    background: linear-gradient(120deg, var(--primary), var(--primary-dark));
    color: #050608;
    box-shadow: var(--glow);
    transition: var(--transition-base);
}

.rf-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(57, 255, 20, 0.6);
}

.rf-btn--ghost {
    background: transparent;
    color: var(--primary);
    border: 1px solid rgba(57, 255, 20, 0.7);
    box-shadow: none;
}

.rf-btn--ghost:hover {
    background: rgba(57, 255, 20, 0.1);
}

.rf-card {
    border-radius: var(--radius-lg);
    background: rgba(11, 14, 18, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(18px);
    box-shadow: var(--card-shadow);
    padding: 1.8rem;
    transition: var(--transition-base);
}

.rf-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(57, 255, 20, 0.18);
}

.rf-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    background: rgba(57, 255, 20, 0.12);
}

.rf-link {
    color: var(--primary);
    font-weight: 600;
}

.rf-section {
    padding: 4rem 0;
}

.rf-section__heading {
    max-width: 640px;
    margin: 0 auto 2.5rem;
    text-align: center;
}

.rf-section__heading h2 {
    font-family: 'Oswald', sans-serif;
    font-size: 2.75rem;
    letter-spacing: 0.03em;
    margin: 0.5rem 0;
}

.rf-section__actions {
    margin-top: 2rem;
    text-align: center;
}

.rf-empty {
    text-align: center;
    color: var(--text-muted);
}

.rf-alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
}

.rf-alert--success {
    background: rgba(57, 255, 20, 0.1);
    border: 1px solid rgba(57, 255, 20, 0.4);
}

.rf-alert--error {
    background: rgba(255, 59, 59, 0.1);
    border: 1px solid rgba(255, 59, 59, 0.4);
}

.rf-progress-bar {
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    height: 10px;
    overflow: hidden;
}

.rf-progress-bar span {
    display: block;
    height: 100%;
    background: linear-gradient(120deg, var(--primary), var(--primary-dark));
}

.rf-grid {
    display: grid;
    gap: 1.5rem;
}

/* Form stilleri */
.rf-form {
    display: grid;
    gap: 1.5rem;
}

.rf-form label {
    display: grid;
    gap: 0.5rem;
}

.rf-form label span {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.rf-form input[type="text"],
.rf-form input[type="email"],
.rf-form input[type="number"],
.rf-form input[type="tel"],
.rf-form textarea,
.rf-form select {
    background: var(--bg-elevated);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    padding: 0.85rem 1.2rem;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-base);
}

.rf-form input:focus,
.rf-form textarea:focus,
.rf-form select:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(57, 255, 20, 0.1);
}

.rf-form input::placeholder,
.rf-form textarea::placeholder {
    color: var(--text-disabled);
}

.rf-btn--success {
    background: rgba(57, 255, 20, 0.2) !important;
    color: var(--primary) !important;
    border: 1px solid var(--primary) !important;
}