:root {
    /* Default Colors (Will be overridden by JS) */
    --primary: #4a90e2;
    --primary-light: #7cb3f2;
    --primary-dark: #2c63a6;
    --bg-color: #f4f7fa;
    --text-main: #2c3e50;
    --text-muted: #7f8c8d;
    --white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.4);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-focus: 0 0 0 3px var(--primary-light);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

/* Dynamic background blocks */
.background-decor {
    position: fixed;
    top: -10%;
    left: -5%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--primary-light) 0%, transparent 70%);
    opacity: 0.15;
    filter: blur(60px);
    z-index: -1;
    border-radius: 50%;
    animation: float 15s ease-in-out infinite;
    pointer-events: none;
}

.background-decor-2 {
    position: fixed;
    bottom: -10%;
    right: -5%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, var(--primary) 0%, transparent 60%);
    opacity: 0.1;
    filter: blur(80px);
    z-index: -1;
    border-radius: 50%;
    animation: float 20s ease-in-out infinite reverse;
    pointer-events: none;
}

@keyframes float {
    0% {
        transform: translateY(0px) scale(1);
    }

    50% {
        transform: translateY(-30px) scale(1.05);
    }

    100% {
        transform: translateY(0px) scale(1);
    }
}

/* Top Navbar */
.top-navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 4%;
    background-color: var(--white);
    border-bottom: 8px solid var(--primary);
}

.logo-area img {
    height: 50px;
    object-fit: contain;
}

.coach-info {
    text-align: right;
    line-height: 1.2;
}

.coach-info strong {
    display: block;
    color: var(--primary-dark);
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.coach-role {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Full Width Hero Banner */
.hero-banner {
    background: var(--banner-bg, linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%));
    color: var(--white);
    text-align: center;
    padding: 60px 20px 140px 20px;
    margin-bottom: -100px;
    /* Pulls app-container up without breaking flex bottom calculation */
}

.hero-banner h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.hero-banner p {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
}

.app-container {
    flex: 1 0 auto;
    width: 100%;
    max-width: 750px;
    /* Reduced width to make it taller and center tightly */
    margin: 0 auto;
    padding: 0 1rem 3rem 1rem;
    position: relative;
    z-index: 10;
}

/* Layout Grid */
.main-content {
    display: flex;
    justify-content: center;
    gap: 2rem;
    width: 100%;
}

.main-content.center-calendar .calendar-section {
    width: 100%;
}

@media(max-width: 850px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    min-height: 450px;
}

.glass-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.section-title {
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--primary-light);
    padding-bottom: 0.5rem;
}

.section-title h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-dark);
}

.section-title p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.monthly-quota-info {
    margin-top: 0.35rem;
    font-size: 0.88rem !important;
    font-weight: 600;
    color: var(--primary-dark) !important;
}

.monthly-quota-info.low {
    color: #c0392b !important;
}

/* Calendar Styling */
.date-tabs {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    scrollbar-width: thin;
    cursor: grab;
    touch-action: pan-x;
    scroll-behavior: auto;
    /* better for drag manually */
    -webkit-overflow-scrolling: touch;

    /* Disable selection while dragging */
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
}

.date-tabs:active {
    cursor: grabbing;
}

.date-tabs::-webkit-scrollbar {
    height: 6px;
}

.date-tabs::-webkit-scrollbar-thumb {
    background-color: var(--primary-light);
    border-radius: 4px;
}

.date-tab {
    flex: 0 0 auto;
    padding: 0.75rem 1rem;
    border: 1px solid #e1e8ed;
    border-radius: 8px;
    cursor: pointer;
    text-align: center;
    transition: var(--transition);
    min-width: 95px;
    /* Widened tabs */
    background-color: var(--white);
}

.date-tab:hover {
    border-color: var(--primary);
    background-color: var(--bg-color);
}

.date-tab.active {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.date-tab .day {
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 600;
    display: block;
}

.date-tab .date {
    font-size: 1.2rem;
    font-weight: 700;
}

.time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    /* Increased min-width forces fewer columns */
    gap: 0.75rem;
    max-height: 500px;
    overflow-y: auto;
    padding-right: 5px;

    /* Disable selection */
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
}

.time-slots::-webkit-scrollbar {
    width: 6px;
}

.time-slots::-webkit-scrollbar-thumb {
    background-color: #ddd;
    border-radius: 4px;
}

.time-slot {
    background: var(--white);
    border: 1px solid #e1e8ed;
    border-radius: 8px;
    padding: 0.75rem 0.5rem;
    text-align: center;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-main);
}

.time-slot:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
    color: var(--primary);
}

.time-slot.selected {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: scale(1.05);
}

.no-slots-msg {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.95rem;
    background: rgba(0, 0, 0, 0.02);
    border-radius: 8px;
}

.selected-summary {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 8px;
    font-size: 0.95rem;
    animation: fadeIn 0.3s ease;
}

.selected-summary.hidden {
    display: none;
}

/* Modal Styling */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    padding: 1rem;
    transition: opacity 0.3s;
}

.modal-content {
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.close-modal-btn {
    background: none;
    border: none;
    font-size: 2rem;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.close-modal-btn:hover {
    color: #e74c3c;
    transform: scale(1.1);
}

.modal-summary {
    color: var(--primary);
    font-weight: 600;
    margin-top: 5px;
}

/* Autocomplete logic */
.autocomplete-container {
    position: relative;
}

.autocomplete-items {
    position: absolute;
    border: 1px solid #d4d4d4;
    border-bottom: none;
    border-top: none;
    z-index: 99;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-radius: 0 0 8px 8px;
    box-shadow: var(--shadow-md);
    max-height: 150px;
    overflow-y: auto;
}

.autocomplete-items div {
    padding: 10px;
    cursor: pointer;
    background-color: #fff;
    border-bottom: 1px solid #d4d4d4;
    display: flex;
    flex-direction: column;
}

.autocomplete-items div strong {
    color: var(--primary-dark);
}

.autocomplete-items div small {
    color: var(--text-muted);
}

.autocomplete-items div:hover {
    background-color: var(--bg-color);
}

.form-group {
    margin-bottom: 1.25rem;
}

.row-group {
    display: flex;
    gap: 1rem;
}

.row-group .col {
    flex: 1;
}

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text-main);
}

.required {
    color: #e74c3c;
}

input,
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #dcdfe6;
    border-radius: 8px;
    background: var(--white);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-main);
    transition: var(--transition);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--shadow-focus);
}

.hint-text {
    font-size: 0.75rem;
    color: var(--primary);
    margin-top: 0.25rem;
    display: block;
}

/* Int-tel-input override */
.iti {
    width: 100%;
}

.iti__country-list {
    max-width: 320px !important;
    /* Forces bounding so names wrap instead of expanding modal */
    white-space: normal !important;
    border-radius: 8px !important;
    box-shadow: var(--shadow-md) !important;
    z-index: 1050 !important;
}

/* Force standard absolute dropdown behavior on mobile devices avoiding the buggy full-screen popup */
body.iti-mobile .iti__country-list,
.iti-mobile .iti__country-list {
    position: absolute !important;
    top: 100% !important;
    bottom: auto !important;
    left: 0 !important;
    right: auto !important;
    width: max-content !important;
    max-height: 220px !important;
}

textarea {
    resize: vertical;
    min-height: 80px;
}

.submit-btn {
    width: 100%;
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.submit-btn:hover:not(:disabled) {
    background: var(--primary-dark);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

.submit-btn:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.app-footer {
    text-align: center;
    padding: 2.5rem 1rem;
    background: var(--banner-bg, var(--primary-dark));
    color: var(--white);
    font-size: 0.85rem;
    margin-top: auto;
    /* Solid flex anchor */
}

.app-footer p {
    opacity: 0.8;
    margin: 0;
}

.hidden {
    display: none !important;
}

/* Overlay Loader */
.loader-overlay {
    position: fixed;
    inset: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(5px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.loader-overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* Welcome modal */
.welcome-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1500;
    padding: 1rem;
}

.welcome-modal {
    width: 100%;
    max-width: 520px;
    background: var(--white);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.welcome-modal-header {
    padding: 1.5rem 1.5rem 1.25rem;
    text-align: center;
    color: var(--white);
    background: var(--banner-bg, linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%));
}

.welcome-modal-logo {
    height: 58px;
    max-width: 180px;
    object-fit: contain;
    margin-bottom: 0.5rem;
}

.welcome-modal-kicker {
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.9;
    margin-bottom: 0.2rem;
}

.welcome-modal-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.3;
}

.welcome-modal-body {
    padding: 1.25rem 1.25rem 0.75rem;
}

.welcome-modal-intro {
    text-align: center;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 1rem;
}

.welcome-note {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    background: #f7fbff;
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    padding: 0.9rem 1rem;
    margin-bottom: 0.75rem;
}

.welcome-note-icon {
    font-size: 1.45rem;
    line-height: 1;
    flex-shrink: 0;
}

.welcome-note strong {
    display: block;
    font-size: 0.88rem;
    color: var(--text-main);
    margin-bottom: 2px;
}

.welcome-note p {
    font-size: 0.82rem;
    color: #555;
}

.welcome-modal-footer {
    padding: 0.75rem 1.25rem 1.25rem;
}

.welcome-modal-close-btn {
    width: 100%;
    border: none;
    border-radius: 8px;
    padding: 0.95rem 1rem;
    background: var(--primary);
    color: var(--white);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.welcome-modal-close-btn:hover {
    background: var(--primary-dark);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-left-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}