@font-face {
    font-family: 'Vazirmatn';
    src: url('../assets/fonts/Vazirmatn-Regular.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Vazirmatn';
    src: url('../assets/fonts/Vazirmatn-Bold.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

input,
button,
textarea,
select {
    font-family: inherit;
    outline: none;
}

:root {
    --bg-dark: #0a0d14;
    --bg-card: #151822;
    --bg-input: #1a1e2b;
    --border-color: #2a3143;
    --primary: #1e6fff;
    --primary-hover: #3e8fff;
    --accent: #00e5ff;
    --danger: #ff2a5f;
    --text: #e3e8f5;
    --muted: #8a96b3;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg-dark);
    font-family: 'Vazirmatn', sans-serif;
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
    position: relative;
}

#neonWave {
    position: fixed;
    inset: 0;
    z-index: 0;
    opacity: 0.5;
}

.login-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 380px;
    margin: 20px;
    padding: 32px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 0 30px rgba(30, 111, 255, 0.2), 0 5px 20px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.login-card h2 {
    margin: 0 0 4px;
    font-size: 22px;
    color: var(--text);
}

.login-card h3 {
    margin: 0 0 24px;
    font-size: 16px;
    font-weight: 400;
    color: var(--accent);
    text-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

#stepPhone input,
#stepOtp input {
    width: 100%;
    padding: 13px 16px;
    margin-bottom: 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text);
    font-family: inherit;
    font-size: 15px;
    text-align: center;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

#stepPhone input:focus,
#stepOtp input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(30, 111, 255, 0.4);
}

#stepPhone input::placeholder,
#stepOtp input::placeholder {
    color: var(--muted);
}

#otpCode {
    font-size: 22px;
    letter-spacing: 8px;
}

button {
    width: 100%;
    padding: 13px;
    border: none;
    border-radius: 10px;
    background: var(--primary);
    color: #fff;
    font-family: inherit;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

button:hover {
    background: var(--primary-hover);
    box-shadow: 0 0 15px rgba(30, 111, 255, 0.6);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
}

.msg {
    margin: 12px 0 0;
    min-height: 18px;
    font-size: 13px;
    color: var(--muted);
}

.msg.error {
    color: var(--danger);
}

.msg.success {
    color: var(--accent);
}

.fade-in {
    animation: fadeIn 0.5s ease both;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 420px) {
    .login-card {
        padding: 26px 20px;
        border-radius: 12px;
    }
}