:root {
    --primary-color: #5c68a3;
    --secondary-color: #f8b400;
    --accent-color: #ff6b6b;
    --text-dark: #2d3748;
    --text-light: #f7fafc;
    --bg-light: #ffffff;
    --bg-dark: #1a202c;
    --transition-speed: 0.3s;
}

body {
    font-family: 'Source Sans 3', sans-serif;
    color: var(--text-dark);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
}

/* Modern Navigation */
#mainNav {
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.85);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-speed);
}

#mainNav .navbar-brand {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.navbar-brand {
    padding-top: var(--bs-navbar-brand-padding-y);
    padding-bottom: var(--bs-navbar-brand-padding-y);
    margin-right: var(--bs-navbar-brand-margin-end);
    font-size: var(--bs-navbar-brand-font-size);
    color: var(--bs-navbar-brand-color);
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.navbar-brand:hover,
.navbar-brand:focus {
    color: var(--bs-navbar-brand-hover-color);
}

#mainNav .nav-link {
    position: relative;
    transition: all var(--transition-speed);
}

#mainNav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-speed);
}

#mainNav .nav-link:hover::after {
    width: 100%;
}

/* Modern Masthead */
.masthead {
    position: relative;
    background: linear-gradient(to bottom, rgba(92, 77, 66, 0.8) 0%, rgba(61, 90, 128, 0.8) 100%), url('images/header-bg.jpg') no-repeat center center;
    background-size: cover;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.masthead h1 {
    font-size: 3.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.masthead .divider {
    height: 3px;
    width: 60px;
    background: var(--secondary-color);
    border: none;
    margin: 30px auto;
}

/* Modern Buttons */
.btn-primary {
    background: var(--primary-color);
    border: none;
    border-radius: 30px;
    padding: 12px 30px;
    font-weight: 600;
    transition: all var(--transition-speed) ease;
    box-shadow: 0 4px 12px rgba(92, 104, 163, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(92, 104, 163, 0.4);
    background: var(--primary-color);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    border-radius: 30px;
    color: var(--primary-color);
    font-weight: 600;
    transition: all var(--transition-speed);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
}

/* Section Styling */
.page-section {
    padding: 6rem 0;
    position: relative;
}

.page-section h2.section-heading {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.section-heading::after {
    content: "";
    display: block;
    width: 50px;
    height: 3px;
    background: var(--secondary-color);
    margin: 15px auto 30px;
}

.divider {
    height: 3px;
    width: 50px;
    background: var(--secondary-color);
    border: none;
    margin: 1.5rem auto;
}

.divider-light {
    background: var(--bg-light);
}

/* Modern Card Design */
.card {
    border: none;
    border-radius: 12px;
    overflow: hidden;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.card-img-top {
    height: 250px;
    object-fit: cover;
}

/* Modern Tab Navigation */
.nav-pills {
    border-radius: 50px;
    background: #f8f9fa;
    padding: 5px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 2rem;
}

.nav-pills .nav-link {
    border-radius: 50px;
    padding: 12px 25px;
    margin: 5px;
    font-weight: 600;
    transition: all var(--transition-speed);
}

.nav-pills .nav-link.active {
    background: var(--primary-color);
    box-shadow: 0 5px 15px rgba(92, 104, 163, 0.3);
    transform: translateY(-2px);
}

/* Modern Form Styling */
.form-floating .form-control {
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    padding: 1.2rem 1rem;
}

.form-floating>label {
    padding: 1.2rem 1rem;
}

.form-floating .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(92, 104, 163, 0.2);
}

.form-select {
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

/* Footer */
footer {
    padding: 3rem 0;
    background: #fafafa;
    border-top: 1px solid #f0f0f0;
}

/* Animation effects */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.animate-in {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Background effect for sections */
.bg-dark {
    background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    color: var(--text-light);
}

.bg-primary {
    background: linear-gradient(135deg, #5c68a3 0%, #4c5688 100%);
    color: var(--text-light);
}

.bg-secondary {
    background: linear-gradient(135deg, #718096 0%, #4a5568 100%);
    color: var(--text-light);
}

/* Responsive */
@media (max-width: 991.98px) {
    .masthead h1 {
        font-size: 2.5rem;
    }

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

@media (max-width: 767.98px) {
    .masthead h1 {
        font-size: 2rem;
    }

    .nav-pills {
        flex-direction: column;
    }

    .nav-pills .nav-link {
        margin-bottom: 0.5rem;
    }
}

#rsvpNav {
    background-color: #fff;
    transition: background-color 0.2s ease;
}

#rsvpNav .navbar-brand {
    font-family: "Playfair Display", -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif,
        "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    font-weight: 700;
    color: #212529;
}

#rsvpNav .navbar-nav .nav-item .nav-link {
    color: #6c757d;
    font-family: "Playfair Display", -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif,
        "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    font-weight: 700;
    font-size: 0.9rem;
    padding: 0.75rem 0;
}

#rsvpNav .navbar-nav .nav-item .nav-link:hover,
#rsvpNav .navbar-nav .nav-item .nav-link:active {
    color: var(--bs-primary);
}

#rsvpNav .navbar-nav .nav-item .nav-link.active {
    color: var(--bs-primary) !important;
}

header.rsvp {
    padding-top: 10rem;
    padding-bottom: calc(10rem - 4.5rem);
    background: linear-gradient(to bottom,
            rgba(92, 77, 66, 0.8) 0%,
            rgba(61, 90, 128, 0.8) 100%),
        url("../images/rsvp.jpg");
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: scroll;
    background-size: cover;
}

header.rsvp .h1 {
    font-size: 2.25rem;
}

@media (min-width: 992px) {
    header.rsvp {
        height: 100vh;
        min-height: 40rem;
        padding-top: 4.5rem;
        padding-bottom: 0;
    }

    header.rsvp p {
        font-size: 1.15rem;
    }

    header.rsvp h1,
    header.rsvp .h1 {
        font-size: 3rem;
    }
}

@media (min-width: 1200px) {

    header.rsvp h1,
    header.rsvp .h1 {
        font-size: 3.5rem;
    }
}