/* ===========================
   CSS STYLES - Apple Minimalism
   =========================== */

/* Import Google Sans Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* Базовые переменные - Apple Style */
:root {
    --color-black: #000000;
    --color-white: #ffffff;
    --color-gray-light: #f5f5f7;
    --color-gray-medium: #86868b;
    --color-gray-dark: #1d1d1f;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--color-white);
    color: var(--color-black);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Логотип PT */
.logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background-color: var(--color-black);
    border-radius: 16px;
    margin: 0 auto 20px;
}

.logo-text {
    font-size: 38px;
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: -2px;
}

/* Контейнер авторизации */
.auth-container {
    width: 100%;
    max-width: 850px;
    padding: 30px 20px;
    text-align: center;
}

.auth-box {
    background: transparent;
    padding: 0;
}

.auth-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 6px;
    letter-spacing: -0.5px;
}

.auth-subtitle {
    font-size: 15px;
    font-weight: 400;
    color: var(--color-gray-medium);
    margin-bottom: 32px;
}

/* Формы */
.form-group {
    margin-bottom: 12px;
    text-align: left;
}

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-black);
    margin-bottom: 4px;
}

.form-input {
    width: 100%;
    height: 42px;
    padding: 0 14px;
    font-size: 14px;
    font-family: var(--font-family);
    color: var(--color-black);
    background: var(--color-white);
    border: 1px solid var(--color-gray-medium);
    border-radius: 8px;
    transition: var(--transition);
    outline: none;
}

.form-input:focus {
    border-color: var(--color-black);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

.form-input::placeholder {
    color: var(--color-gray-medium);
}

/* Кнопки */
.btn {
    display: inline-block;
    width: 100%;
    height: 42px;
    padding: 0 20px;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-family);
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    outline: none;
    box-sizing: border-box;
    line-height: 42px;
}

.btn-primary {
    background-color: var(--color-black);
    color: var(--color-white);
    margin-top: 12px;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-gray-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-black);
    border: 1px solid var(--color-gray-medium);
    margin-top: 12px;
}

.btn-secondary:hover {
    background-color: var(--color-gray-light);
    border-color: var(--color-black);
}

.btn-link {
    background-color: transparent;
    color: var(--color-gray-medium);
    border: none;
    margin-top: 12px;
    font-weight: 500;
    transition: var(--transition);
}

.btn-link:hover {
    color: var(--color-black);
    background-color: transparent;
    transform: none;
    box-shadow: none;
}

/* Текстовые ссылки */
.text-link {
    display: inline-block;
    margin-top: 24px;
    font-size: 14px;
    color: var(--color-gray-medium);
    text-decoration: none;
    transition: var(--transition);
}

.text-link:hover {
    color: var(--color-black);
}

/* Сообщения */
.message {
    padding: 10px 14px;
    border-radius: 8px;
    margin-bottom: 12px;
    font-size: 12px;
    font-weight: 500;
}

.message-error {
    background-color: #fff5f5;
    color: #c41e3a;
    border: 1px solid #ffd0d0;
}

.message-success {
    background-color: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.message-info {
    background-color: var(--color-gray-light);
    color: var(--color-gray-dark);
    border: 1px solid var(--color-gray-medium);
}

/* Поле пароля с глазком */
.password-wrapper {
    position: relative;
}

.password-wrapper .form-input {
    padding-right: 48px;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-medium);
    transition: var(--transition);
}

.password-toggle:hover {
    color: var(--color-black);
}

.eye-icon {
    width: 18px;
    height: 18px;
}

/* Разделитель "Или" */
.divider {
    position: relative;
    text-align: center;
    margin: 24px 0 20px;
}

.divider::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    height: 1px;
    background-color: var(--color-gray-light);
}

.divider span {
    position: relative;
    display: inline-block;
    padding: 0 12px;
    background-color: var(--color-white);
    font-size: 13px;
    color: var(--color-gray-medium);
}

/* Текст регистрации */
.register-text {
    font-size: 14px;
    color: var(--color-gray-medium);
    margin-top: 24px;
}

.register-link {
    color: var(--color-black);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border-bottom: 1px solid var(--color-black);
}

.register-link:hover {
    opacity: 0.7;
}

/* Форма регистрации - Grid Layout */
.form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 12px;
}

.form-group-full {
    grid-column: 1 / -1;
}

/* Select стили */
select.form-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23000' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}

select.form-input:focus {
    border-color: var(--color-black);
}

/* Подсказки под полями */
.form-group small {
    display: block;
    margin-top: 4px;
    font-size: 11px;
    color: var(--color-gray-medium);
}

/* Валидация пароля */
.password-requirements {
    margin-top: 8px;
    padding: 10px;
    background: var(--color-gray-light);
    border-radius: 6px;
    text-align: left;
}

.requirement {
    font-size: 11px;
    line-height: 1.6;
    color: #dc3545;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.requirement::before {
    content: '✗';
    font-weight: bold;
    font-size: 14px;
    width: 16px;
    text-align: center;
}

.requirement.valid {
    color: #28a745;
}

.requirement.valid::before {
    content: '✓';
}

/* Адаптивность */
@media (max-width: 768px) {
    .auth-container {
        max-width: 100%;
        padding: 20px 16px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .auth-title {
        font-size: 24px;
    }
}

/* Кнопка disabled */
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn:disabled:hover {
    transform: none !important;
    box-shadow: none !important;
}

/* ===========================
   MOBILE APP STYLES
   =========================== */

/* Базовые мобильные оптимизации */
@media (max-width: 768px) {
    * {
        -webkit-tap-highlight-color: transparent;
        -webkit-touch-callout: none;
    }

    body {
        -webkit-text-size-adjust: 100%;
        overscroll-behavior: none;
    }

    input, select, textarea, button {
        font-size: 16px !important;
    }

    .btn {
        min-height: 44px;
    }

    .form-input {
        min-height: 44px;
    }
}

/* Нижний таббар (bottom tab bar) */
.mobile-tabbar {
    display: none;
}

@media (max-width: 768px) {
    .mobile-tabbar {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 56px;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: 0.5px solid rgba(0, 0, 0, 0.1);
        z-index: 1000;
        padding-bottom: env(safe-area-inset-bottom, 0);
        align-items: center;
        justify-content: space-around;
    }

    .mobile-tabbar a {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        text-decoration: none;
        color: #86868b;
        font-size: 10px;
        font-weight: 500;
        padding: 4px 12px;
        border-radius: 8px;
        transition: color 0.15s ease;
        min-width: 64px;
    }

    .mobile-tabbar a.active {
        color: #000;
    }

    .mobile-tabbar a svg {
        width: 22px;
        height: 22px;
    }
}

/* Бургер-кнопка */
.mobile-header {
    display: none;
}

@media (max-width: 768px) {
    .mobile-header {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 56px;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 0.5px solid rgba(0, 0, 0, 0.1);
        z-index: 1001;
        align-items: center;
        padding: 0 16px;
        padding-top: env(safe-area-inset-top, 0);
    }

    .mobile-header-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        flex: 1;
    }

    .mobile-header-logo-icon {
        width: 32px;
        height: 32px;
        background: #000;
        border-radius: 6px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        font-weight: 800;
        color: #fff;
        letter-spacing: -1px;
    }

    .mobile-header-logo-text {
        font-size: 16px;
        font-weight: 700;
        color: #000;
    }

    .mobile-hamburger {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border: none;
        background: transparent;
        cursor: pointer;
        border-radius: 8px;
        color: #000;
        transition: background 0.15s;
    }

    .mobile-hamburger:active {
        background: rgba(0, 0, 0, 0.06);
    }

    .mobile-hamburger svg {
        width: 22px;
        height: 22px;
    }
}

/* Оверлей для сайдбара */
.sidebar-overlay {
    display: none;
}

@media (max-width: 768px) {
    .sidebar-overlay {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.4);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.25s ease, visibility 0.25s ease;
    }

    .sidebar-overlay.visible {
        opacity: 1;
        visibility: visible;
    }
}

/* Safe area для iPhone с вырезом */
@supports (padding: env(safe-area-inset-top)) {
    .mobile-header {
        height: calc(56px + env(safe-area-inset-top));
        padding-top: env(safe-area-inset-top);
    }

    .mobile-tabbar {
        height: calc(56px + env(safe-area-inset-bottom));
    }

    .mobile-fab {
        bottom: calc(76px + env(safe-area-inset-bottom)) !important;
    }
}

/* Плавающая кнопка (FAB) */
.mobile-fab {
    display: none;
}

@media (max-width: 768px) {
    .mobile-fab {
        display: none;
        position: fixed;
        bottom: 76px;
        left: 50%;
        transform: translateX(-50%);
        width: 52px;
        height: 52px;
        border-radius: 50%;
        background: #000;
        color: #fff;
        border: none;
        cursor: pointer;
        z-index: 998;
        align-items: center;
        justify-content: center;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .mobile-fab:active {
        transform: translateX(-50%) scale(0.92);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .mobile-fab svg {
        width: 24px;
        height: 24px;
    }
}